u.s. department of interior geological survey south ... · ayrt bcs bla* bow caf ccs chf ch5* ch6*...

U.S. Department of Interior

Geological Survey

South Carolina Seismic Program

Seismological Data Report

Selected Events March 1973-December 1977

and

Network Events January 1978 - July 1980

By

Susan Rhea

Open-File Report 81-362

1981

Prepared for the Nuclear Regulatory Commission

This report is preliminary and has.not been reviewed for conformity

with U.S. Geological Surveyeditorial standards

CONTENTS

Page

Introduction 1

Station List 4

Velocity Models 5

Station Corrections 6

Explanation of Hypocenter Information 7

Explanation of Column Headings 10

Charleston Seismic Zone Events March 1973-July 1980 11

Data Report 14

Other South Carolina Events January 1978-July 1980 73

Acknowledgments 78

. .-. . . -. . -. . __._ ________-.______ 7Q/ y

ILLUSTRATIONS

Figure la. Map showing South Carolina Network and cooperating stations

Ib. Map showing velocity model regions

2. Map showing Charleston Seismic Zone earthquakes January 1974-

July 1980 A,B,C<10 km

3.. Map showing other South Carolina events January 1978-July 1980

Tables

Page

1 C«-o+- { f\n 1-fet-.__._______,__.__._____________.___________________________________________ / x* ocation J.ISL -. ____ __ ___ ^

2. Velocity models 5

3. Station corrections 6

4. Charleston seismic zone events March 1973-July 1980

Summary catalog 12

5. Other South Carolina events January 1978-July 1980

Summary catalog 74

Introduction

The purpose of this data report is to collect and distribute data

acquired from the South Carolina Seismic Network (Tarr and King, 1974) in

order to facilitate current studies of earthquake occurrence. Record

interpretation, data processing, and collation of hypocenter data and related

event parameters have been performed by personnel at the U.S. Geological

Survey. The processing and interpretation are subject to revision on the

basis of results from current research. Hypocentral parameters are computed

by the program HYPOELLIPSE (Lahr, 1979).

Data from 37 stations using three velocity models (and associated station

corrections) are employed:

Model Region

I Summerville-Middleton Place and Adams Run

II Bowman

III Other

(See fig. 1 and table 1.) Model I is the result of crustal structure studies

(Amick, 1979) and the program VELINV, a velocity inversion program (Gawthrop,

1980). Model II is based on the interpretation of data obtained from three

calibration blasts and eight well-recorded earthquakes in the Bowman region

used in VELINV. Model III is a general subsurface model of South Carolina

established from seismic refraction and deep-well drilling (Bonini and

Woollard, 1960). See tables 2 and 3 for an explanation of these models.

Hypocenter solutions for local earthquakes are designated either "free-

depth solution" or "fixed-depth solution." All computations allow the depth

to be determined as part of the solution (to go free from the starting depth)

if the data are of sufficiently good quality. If not, the depth is held fixed

at the starting value. If, in computation for a "free-depth solution," the

depth change between iterations is greater than 10 km, the event becomes a

"fixed-depth solution" and the depth is held at the last determined depth.

"Selected Events" in the title of this report refers to those earthquakes in

the Summerville-Middleton Place, Adams Run, and Bowman areas during March

1973-December 1977 which have been reread and relocated using the above

models. Data in this bulletin supersedes data in previous data reports where

applicable (Carver, and others, 1977, and Carver, and others, 1978).

rUi'N i

^tStN^Ul-^''

T7

NORTH CAROLINA

3.VX >

%w

ASM1 \

3 I'M

%

:HF^ APRM

MftOMO //uA ^A

ALHS

CHF^ -- o Columbia

CHS^ SOUTH CAROLINAMTT OSB

\

:i:r\

REGA ACBG

ETGA AWDG

GEORGIA

0 50 100 I . . I , I____i

kilometers

^^

ROW ^ BOW

32-Xl

cOWBOWAcr7 J-

,,/

HJ"\V s:r\v M \\ '

Figure l.--a. South Carolina Network istations (solid triangles) and cooperating stations (open triangles) operating during July 1980. b. Location of. velocity model regions I, II, and III.

Table 1. List of Stations in the South Carolina Network

Code

AYRTBCSBLA*BOWCAFCCSCHFCH5*CH6*COWFMF

GVSHBFJSCLHSMGSMKCMTTNHSOSBOSCPBSPPSPPMROWSBRTSGSSMASRPD*

SRPN*SRPW*SVSTRKVRNVSCWMS

ZIN

Station Period of Operation (year/month/day)

Ay resBaptist CollegeBlacksburg, Va.BowmanCharleston AFBCaw Caw SwampCalhoun FallsCalhoun Falls #5Calhoun Falls #6Cow Castle CreekFrancis Marion

Natl. ForestGranitevilleHart's BluffJenkinsvilleLiberty HillMiddleton GardensMoncks CornerMonet taNorth HampdenOrangeburgOrangeburgPigeon BayPierpontParson* s Mtn.Rowesville

St. GeorgeSummer tonSavannah RiverPlant "D"Plant "N"Plant "W"

SlandsvilleTurkey Creek -VarnevilleVarnevilleWest Middle

SchoolMt. Zion

77/01/19-77/01/2976/03/31-present62/09/04-present77/10/22-present73/02/27-73/04/1376/03/31-present77/02/14-present75/12/01-present75/12/01-present77/10/22-present73/02/28-73/10/02

74/05/20-76/08/0973/03/23-present74/05/20-present74/05/20-present76/03/31-present73/03/13-73/10/0176/08/09-present74/05/20-80/06/2577/04/02-present74/05/20-77/04/0274/05/20-present76/03/31-present75/07/04-present77/10/22-present77/01/19-77/01/2973/03/08-present74/05/20-75/07/0176/08/06-present

76/08/06-present76/08/06-present76/03/31-present80/06/25-present79/10/15-present74/05/20-79/10/1577/10-22-pres^ent

77/10/22-present

Latitude deg-min

3332373332323433333332

333234343233333333333332343333333333

33333233333233

33

N.N.N.N.N.N.N.N.N.N.N.

N.N.N.N.N.N.N.N.N.N.N.N.N.N.N.N.N.N.

N.N.N.N. .N.N.N.

N.

1.58.12.22.54.48.1.

44.52.22.57.

35.55.16.28.53.11.45.4.

32.32.16.49.5.

21.1.

11.37.9.

19.12.58.7.2.

52.25.

6.

088768609097480758624

82987474 8240083283407442009320586830

73131333257464

43

Longitude Elevation deg-min meters

8080808080808282828080

818081808080817980808080828080808081

818180

. 79808180

80

W.W.W.W.W.W.W.W.W.W.W.

W.W.W.W.W.W.W.W.W.W.W.W.W.W.W.W.W.W.

W.W.W.W.W.W.W.

W.

8.4.25383

153519314250

5122154882

38455049152

214714301942

35341446563

44

9

1230.26.57.83.32.20.50.17.031.46

.17

.68

.48

.48

.45

.40

.17

.36

.67

.50

.84

.40

.80

.67

.83

.72

.08

.75

.33

.68

.92

.67 '

.50

.00

.45

.77

12

63450109

15211414650

10010

120120

925182109160254

25450 253031

94773

10303050

__

*cooperating station not operated by USGS leaders (- ) indicate information unavailable or unused

Table 2. Velocity Models

Gradient Models(Summerville-Middleton Place

Adams Run)

II (Bowman)

P-wave surface velocity

Gradient (km/sec/km)

Apparent depth to base of crust

Sub-crust P-wave velocity

Vp/Vs

Greatest distance with weight 1.0 (km)

Least distance with weight 0.0 (km)

6.00

.013

29.91

8.23

1.745

75.00

250.00

5.61

.051

45.44

8.10

1.691

100.0

250.0 ;

Layered ModelIII

(SC exclusive of regions I and II)

Depth to top of layer (km)

0.01.23.5

32.0

Vp/VsGreatest distance with weight 1.0 (km)Least distance with weight 0.0 (km)

P-wave velocity _____(km/sec)

2.5 5.8 6.2 8.2

1.7375.0

250.0

Table 3. Station Corrections

Corrections (sec)STATION

AYRTBCSBLABOWCAFCCSCHFCHSCH6COWFMFGVSHBFJSCLMSMGSMKC ;HIT 'NHSOSBOSCPBSPPSPRMROWSBRTSGSSMASRPDSRPNSRPWSVSVRNVSCWMSZIN

Model I

* .10 -.50 .10

-.10 .20 -.15.05 -.05 .15 -.15_____

Model II

.30 .40 -.15 -.45.10 .50 .15 .30

....

Model III

.10 .20

-.10-.10 .10 -.15 .10 .10 _.

* leaders mean no station correction required.

6

Explanation of Hypocenter Information

Summary Catalog

REG - geographical region of location; indexed I, II, III

with respect to velocity model and station corrections

used in hypocenter location

Origin Time - year, month, day, hour, minute, seconds of event in

UTC (Coordinated Universal Time)

Latitude, Longitude - epicentral location; negative values are south and

west, respectively

M - magnitude of event, determined from coda duration in the

formula:

M = -.87 + 2.0*log (duration) + ,0035*DIST + ,007*DEPTH

(Lee and others, 1972)

Error Ellipsoid - A, B, and C lengths of semi-axes in kilometers, trend

of axes in degrees clockwise from north, plunge of axes

in degrees from horizontal

% - confidence level of error ellipsoid

RMS - root-mean-square of residuals

No. ob. - number of phase arrivals used in location

Gap - largest azimuthal separation between stations

DM - distance to third nearest station

Q - hypocenter quality; based on the greater of the

dimensions of elliptical shadow of error ellipsoid cast

onto surface and vertical deviation of ellipsoid from

hypocenter:

Greatest distance from Quality from hypocenter (km)

A 2.5 B . 5.0

.C 10.0 D MO.O

DATE

ORIGIN TIME

REGION

LATITUDE

LONGITUDE

DEPTH

MAG(D)

NUM. OBS.

GAP

RMS

QUALITY

Explanation of Hypocenter Information

Data Report

- 2 digit year, month, and day

- computed origin time of event

- general area of event; also refers to velocity model used for

computing location

- location of event N or S of 0°(equator), measured in degrees

and decimal minutes

location of event E or W of 0°(Prime Meridian), measured in

degrees and decimal minutes

location of event down from surface, measured in kilometers;

free- or fixed-depth solution indicated

magnitude of event, determined from coda duration in the

formula:

DMAG--.87 + 2.0*log(duration) + .0035*DIST + .007*DEPTH (Lee,

and others, 1972)

number of p- and s-phase arrivals used in computing hypocenter

largest azimuthal separation between stations in degrees

root-mean-square of travel-time residuals, in seconds

hypocenter quality; based on dimensions of elliptical shadow of

error ellipsoid cast onto surface and vertical deviation of

ellipsoid from hypocenter, whichever is greater:

Quality

A

B

C

D

Greatest distance from from hypocenter (km)

2.5

5.0

. 10.0

>10.08

68% CONFIDENCE ELLIPSE AND VERTICAL DEVIATION - computed epicentral

confidence ellipse and depth deviation; semi-axes of ellipse

are in kilometers, trend Is degrees measured from north

9

Explanation of Column Headings

STATION - station code

DIST - great circle distance to event, in kilometers

AZM - station to epicenter azimuth, in degees clockwise from north

AIN - angle of departure in degrees from downward vertical

PHASE - phase identification

I or E indicates character of P- or S-arrival

(I=impulsive, E=emergent)

C or D (+ or -) indicates direction of first motion

(C or + = compressive, D or - = dilitational)

0-4 indicates quality of arrival, 4 weighted arrivals are not used

in computing hypocenter. (For further explanation see Dart,

1980).

TIME - arrival time of phase in seconds (hour and minute of arrival from

Origin Time)

TOBS - observed travel time in seconds from computed origin time

TCAL - calculated travel time in seconds from computed origin time

RES - residual travel time in seconds;

TOBS - TCAL - (station correction)

DMAG - magnitude of event at station computed by method of Lee and

others, 1972.

10

Charleston Seismic Zone Events March 1973-July 1980

11

Tabl

e 4. -

Charleston seismic

zone events March

1973 -

July

1980

Ccttleg

Origin ti

««(U

TC)

REG

Ine«*

vf

»o

a *

*<n

t

1 1973

3 25

4

29 32.870

2 1971

4 23 21 12

39.300

1

1973

6

9 19 23 50.570

4 1973

6 12

20

45 22.530

5 19

73

d 25

9 17 30

.910

6

1973

11

13 15 10

3.42

07

1971 12

19 10

I 6

1974

9 19

7410 1974

11 19

7412

197S

11 19

7614 1976

15 1976

16 1976

17 1976

11

16 19

76II

19 1976

II

20 19

76II

21 19

76I

22 19

76II

23 19

76II

24 1976

II

25 1976

"

26 19

7727 19

7728

19

7729

19

7710

19

7731

19

7732 19

7733

19

7734

19

77I

35 19

77I

36 19

77I

37 1977

38 1977

39 19

7740

1977

41 19

7742

19

7743 19

7744

19

7845 19

7846

19

7847 19

7646 19

7649 19

78SO 19

?951

19

7952

19

7953 19

7954 19

79I

55 19

7956

19

6057 19

40II

58 I960

5 28

57

T 4

11 22

5It

2?

64

28

54

6 21

4 26

6739

8 2B 23

9 15

59

22

69

22

89

22

99

23

511

14 21

11 21 13

11 22

00

II 26

91

16 16

1 20

4

2 26 10

3 IB

73

30

65

31 23

6 5

006

22 20

8 23 13

8 25

49

.1 21

11 10 11

12 15

712

IS

|9

12 16 11

12 16

11

12 16

112 20

23

9 ,7 22

10 30

9

10 30

9

10 10

9

10 30

9

10 30

10

1 27 23

6 11

210

5 23

10 21

712

7 5

12 17 17

6 22 20

16 16.460

1 1«.290

1 36.640

25 S6.240

22 44

.440

46 S2.630

42 15

.910

15 5a.no

28 42

.550

15 39.560

15 35

.440

44 34.440

52 21.270

14 14

.170

ao to

.600

12 12

.010

31 16.470

30 51.390

36 49.790

29 14

.220

5 45.750

9 56.140

36

6.630

27 47.760

50 13

.400

42 29

.730

43 40.060

«5

0.03

020

7.

150

5 32

.220

24 59.700

15 55

.160

16 43.630

14 34.410

25 31.600

56 37.790

41 23

.300

53 22.960

15

6.460

15 13.000

16

2.78

016 14

.920

4 22.000

55 15

.650

11 56.590

5 54.740

10 26.650

43 34

.970

34 56

.620

33

6.160

6 22 23 35

26.520

7 1

23 33 19.610

North

Ettt

Fool

titud* lo

ngit

ude

d«pt*

(fl*

9>

<d»g)

(km)

32.969

33.004

33.101

33.283

32.9

50

32.921

32.997

33.364

,33

.004

12.9

2132.892

33.002

33.107

33.751

32.9

9433.095

33.144

33.371

33.395

33.371

33.375

32.961

33.377

33.3

7633.369

33.042

12.9

2832.923

32.9

3432.952

12.942

33.052

32.995

32.936

33.361

33.3

9033.366

32.9

8332.944

32.7

3732.725

32. 73'

33.064

13.061

33.045

33.045

33.043

33.039

33.062

33.0

5132

.969

32.762

32.920

33.0

0733

.477

33.012

33.015

33.360

80.105

-80.239

80.434

-80.417

60.169

80.169

80.267

60.706

60.223

80.144

80.145

60.216

-79.728

61.

668

-60.241

60.162

-81.413

60.

716

-60.662

60.

708

80.

706

-80.188

-80.707

60.713

80.693

-80.214

60.

163

80.176

60.175

-60.184

-60.226

-61.

412

-80.

155

-80.163

-80.697

-60.

681

60.

696

-60.

264

-80.167

-60.

317

-60.318

-80.292

-60.

232

-60.210

-60.

152

60.151

-60.

154

-60.

150

-60.187

-60.162

-80.227

-60.

261

-60.

166

-60.168

-60.667

-60.

158

-80.

156

-60.

673

S.O

S.9

15.0

5.0

1.3

0.7

12.4 6.8

3.7

7.6

9.6

10.2 8.4

0.3

13.7 4.5

6.6

1.0

4.1

4.5

4.«

3.9

1.5

5.2

7.0

6.6

4.9

4.2

7.9

12.1 3.5

1.3

7.6

9.0

7.4

1.0

13.1 7.5

8.1

7.1

6.6

12.0

10.0

6.8

7.3

7.1

3.0

17.5

6.2

10.4

13.1

10.7

4.6

7.4

0.2

0.3

2.1

Error

ellipsoid *

M B(k

«)

Tr PI b(k.)

Tr PI eU«)

Tr PI

X (t)

ob C»p

ON 0

uth

* *

*

*

1.4

* '

1.7

0*9

3.8

2.7

3.1

2.2

i.«

1.1

2.4

1.7

0.6

1.1

1.1

1.2

1.3

1.9

0.9

2.7

1.9

l.b

1.2

2.9

2*5

2.7

2.1

2.3

2.9

1.6

0.4

2.0

2.6

2.1

2.3

1.7

1.8

2.6

...

1.9

2.4

1.3

2.6

2.5

2.1

1.6

2.9

1.1

2.1

1.6

1.6

2.8 229

1.9

55

16.1 254

2.1 259

2.0 239

2.2 237

2.2

57

0.4 119

1.9

731.0 256

0.6

670.6 251

1.2

332

0.6

420.7

64

1.2

323

0.9

400.6 316

0.7 226

0.5 309

0.8 279

0.4 316

0.4 312

0.5 316

0.6

520.6 239

0.3

210.4 266

0.6 298

1.2 300

1.0 121

1.1

293

0.7

29

1.0 226

0.3 322

0.9 12

11.0

25

0.7

270.6 260

1.4 16

32.0 16

31.9 129

0.3 313

0.3 15

90.6 166

0.6

82

0.7 325

2.9

640.9 235

0.4 317

1.5 295

0.9

44

0.3 325

3.3 101

1.0 229

1.2 237

0.4 300

2 6.9 320 13 >«9.9 130 76 64 ....

3.241 HH 0 ....

1 5.0 325 10

32.3 151

79 68 ....

4-197 11 0

....

0 53.6 344

6 >99.9 163 62 68 1.72

6 169 40 0

....

3 6.1 349

3 >99.9 123 65 66 0.66

4 239 54 0 ....

0 4.

1 329

4 >99.9 146 66 66 0.10

5 156 30 0

....

0 7.5 326 33

12.6 146 56 68 0.11

5 246 42 0

....

3 1 6 1 5 0 193 II 2 5 0 2 1 7 6 2 3 4 29 16 7 11A 13

1 3 5 I 2 1 6 12 13 9 9 5 214 9 6 4 6 2 17'

17 4 10 13 0 0 2

4.8

326

161.

1 49

73.9

342

72.0

346

112.0

355

211.

1 341

63.1

74 12

1.1

162

31.2

331

137.1

347

2 2.7

232

70.4

310

61.3

46

50.4

316

41.

2 41

171.1

10

110.6

226

50.7

222

41.9

226

100.4

304

300.7

335

210.2

290

60.6

359

70.6

34 16

1.7

35 22

3.7

21-1 27

1.3

24

40.5 296 27

0.4 316

31.

0 53 30

1.6

31

90.6 294

140.5 294 16

1.6 166 18

0.6 275 10

I.I

275 11

1.4 220

110.5 212 25

0.4 250 10

0.9

94 10

0.5 173

91.

1 235

64.6 157 24

0.6 325

80.9

57 30

3.2

40 40

0.5 313 23

0.6 233 12

4.6

1 37

O.A 319

20.9 127

11.0 206 36

17.6 157 71 68 ....

« 19

1 J2 0 ....

2.0 237 82 66 0.06 10

163 42 A

....

90.1 203 60 66 0.04

4 162 44 0

....

2.9 162 76 66 0.13 10 202 41 H

....

6.0 169 66 66 0.09

9 206 44 C

....

2.0 160 82 66 0.10 10 163 35 A

....

6.2

217

51 66 0.16 II 22

3 74

C

....

4.5 317 65 68 0.21

14 105 70 B

....

2.2 192 72 68 0.05

6 163 14 A

....

>99.9 211 87 66 ....

4 164 40 0 ....

4.9

69 61

68 0.35 17

189 70 B

....

1.7 130 64 66 0.13 16 120 41 A

....

3.3 205 64 6A 0.14 10 |20 41 B

....

2.1 12

1 65 68 0.14 18 106 43 *

....

2.1 196 71 66 0.12 13 146 45

* ....

5.3 160 77 68 0.16 12 123 17

C

....

2.1

66 64 68 0.13 16

109 43 A

....

2.7

79 65 68 0.13 18 115 58 B

....

2.3

70 79 68 0.13 11

145 42 »

....

1.6 |7

6 46 66 0.09 |7

l3

to 17

*

....

1.6 114 63 68 0.15 19

9<l

10

* ....

0.6 152 79 66 0.05 13

103 12 A

....

1.4 169 62 64 0.07

9 122 11

A

....

1.5 166 64 68 0.12 16

91

11

A ....

4.2 162 64 66 0.16 11

89 14

B

....

2.9

29 62 68 0.22 15 213 76 B

....

15.0 166 64 68 0.17 10

123 11

0

....

1.4 129 62 66 0.07 11

104 10

A ....

1.8 11

9 66 66 0.11

17 111

42 A

....

1.2 229 59 66 0.06 14 168 41

A

....

3.1 217 80 66 0.16 10

140

6 B

....

2.0 138 74 68 0.14 17 106 15

A

....

1.6 153 69 66 0.11

17

65 10 A

....

2.6

45 67 66 0.16 25 213 24 A

....

2.6

51 76 66 0.15 25 217 25 B

....

3.3

54 75 68 0.14 15 291 23 B

....

5.3

14 77 66 0.14 10 115 18

C

....

0.6

78 56 66 0.12 28

56 16 A

....

0.9

47 79 66 0.06 13

93 16 A

....

1.9 317 76 66 0.10 10

95 16

A

....

1.6 319 79 68 0.07

9 96 16 A

....

3.9

69 62 68 0.17 13

93 16 B

....

11.5 32

1 65 66 ....

4 |53 23 0

....

2.3 13

1 61

66 0.14 16

71

13 A

....

1.3 202 54 68 0.09 14 100 15 A

....

2.4 186 45 68 0.16 13 278 21 B

....

2.7 144 66 66 0.05

8 154 21

A

....

1.5

94 74 66 0.12 24 105 11

A

....

9.7 206 50 66 0.11

6 297

11 C

....

6.5 138 88 66 0.17 15

115 11

C

....

9.9 |46 66 66 0.16 12

117 10 C

....

0.6

33 51

68 O.ll

15 127

6 A

....

to

inn ro

oron

in*** "CM

B

o

Bowman

Summerville

Middleton Place

Charleston

Adams Run __L4-

10

kilometers

8036H 8021V 00 6 M 7951V

Figure 2.--Charleston Seismic Zone earthquakes from January 1974 through July 1980 that have the longest dimension of the error ellipsoid (semi-axis) less than 10 km.

13

******************************************** DATE 730325 ORIGIN TIME 429:32.87 UTC

REGION SUMMERVILLE-MIDDLETON PLACE LATITUDE 32:59.31 N LONGITUDE 80: 6.31 W DEPTH 5.00(km)

Fixed Depth Solution

MAG(D) 0.0********************************************

Num.Obs. 3

Gap 241

RMS 0.00

68X Confidence Ellipse and Vertical Semi-Axis Length(km) Trend

3.01 42.00 99.00 -48.00 99.00 vertical

Quality D

Devi at ion

STATION D 1ST AZM AIN PHASE TIME TOBS TCAL RES DMAG (km) (deg)Cdeg) (sec) (sec) (sec) (sec)

MKCHBFSGS

23.226.244.2

15256301

1019994

EPEPEP

36.36.40.

808040

3.933.937.53

3.934.437.38

0.000.000.00

000

.0

.0

.0

14

********************************************* DATE 730423 ** ORIGIN TIME 2132:39.30 UTC ** ** REGION SUMMERVILLE-MIDDLETON PLACE ** LATITUDE 33: 0.25 N ** LONGITUDE 80:14.34 W ** DEPTH 5.90(km) ** Free Depth Solution ** ** MAG(D) 0.0 *********************************************

Num.Obs. Gap RMS Quality 4 197 0.00 D

68% Confidence Ellipse and Vertical Deviation Semi-Axis Length(km) Trend

1.97 -120.00 7.62 -30.00

31.77 vertical

STATION--DIST--AZM--AIN--PHASE--TIME TOBS--TCAL--RES--DMAG (km) (deg)Cdeg) (sec) (sec) (sec) (sec)

HBFMKC

SGS

1527

33

.2

.8

.0

23942

309

110100

98

EPEPESEP

41.5044.0047.5045.00

2.204.708.205.70

2485

.70

.70

.20

.55

0.000.000.000.00

0.00.0

0.0

15

********************************************* DATE . 730609 ** ORIGIN TIME 1933:50.79 UTC ** ** REGION SUMMERVILLE-MIDDLETON PLACE ** LATITUDE 33! 7.83 N ** LONGITUDE 80:26.69 W ** DEPTH 5.00(km) ** Free Depth Solution ** ** MAG(D) 0.0 *********************************************



14.29 -107.00 48.40 -17.00 99.00 vertical

STATION DIST--AZM AIN--PHASE TIME--TOBS--TCAL--RES--DMAG (km) (degMdeg) (sec) (sec) (sec) (sec)

HBF

MKC

FMF

22

38

41

.8

.3

.9

164

80

242

101

95

94

IPDES 4IPCESEPC

56.5058.5058.2061.8658.10

5.717.717.4111.077.31

3.866.746.4011.176.99

2.351.841.01

-0.100.32

0

0

0

.0

.0

.0ES 61.50 10.71 12.20 -1.49

CAP 42.9 124 94 IPD 55.06 4.27 7.15 -2.88 0.0ES 4 55.60 4.81 12.48 -7.67

16

********************************************* DAT 730609 ** ORIGIN TIME 1923:50.57 UTC ** ** REGION SUMMERVILLE-MIDDLETON PLACE ** LATITUDE 33: 6.17 N ** LONGITUDE 80:26.01 W ** DEPTH 15.00(km) ** Free Depth Solution ** ** MAG(D) 0.0 *********************************************



18.14 -106.00 56.91 -16.00 99.00 vertical

STATION--DIST--AZM--AIN--PHASE--TIME--TOBS--TCAL--RES--DMAG (km) (deg)Cdeg) (sec) (sec) (sec) (sec)

HBF

MKC

CAP

FMF

19

38

40

41

.5

.0

.3

.5

165

75

121

247

126

109

108

107

IPDES 4IPCESIPDES 4EPC

56.5058.5058.2061.8655.0655.6058.10

5.937.937.6311.294.495.037.53

4.047.056.7011.687.06

12.317.24

2.391.750.93

-0.39-2.57-7.290.29

0

0

0

0

.0

.0

.0

.0ES 61.50 10.93 12.63 -1.70

17

********************************************* *

DATE 730612 ORIGIN TIME 2045:22.53 UTC

REGION SUMMERVILLE-MIDDLETON PLACE LATITUDE 33:17.00 N LONGITUDE 80:25.02 W DEPTH 5.00(km)


MAG(D) 0.0

** ** ** * * * *

********************************************



4.92 -133.00 18.56 -43.00 99.00 vertical

STATION DIST AZM--AIN--PHASE--TIME--TOBS--TCAL--RES--DMAG (km) (degMdeg) (sec) (sec) (sec) (sec)

MKC

HBF

FMF

36.6 106

39.0 175

53.9 227

96

95

92

IPISIPIS 4EP

29.3032.0029.0031.0031.00

6.77 6.13 0.64 0.09.47 10.69 -1.226.47 6.52 0.45 0.08.47 11.38 -2.038.47 8.96 -0.49 0.0

IS 4 34.50 11.97 15.64 -3.67

18

********************************************* DATE 730835 ** ORIGIN TIME 917:30.91 UTC ** ** REGION SUMMERVILLE-MIDOLETON PLACE ** LATITUDE 32:56.98 N ** LONGITUDE 80:11.37 W ** DEPTH 1.33(km) ** Fixed Depth Solution ** ** MAG(D) 0.0 *********************************************


68X Confidence Ellipse and Vertical Deviation Semi-Axis Length(km) Trend

2.07 -116.00 8.06 -26.00

99.00 vertical

STATION--DIST--AZM--AIN--PHASE--TIME--TOBS--TCAL--RES--DMAG Ckm) (deg)Cdeg) (sec) (sec) (sec) (sec)

CAP

HBP

MKC

SGS

12

17

30

40

.4

.7

.1

.4

108

264

28

312

95

93

91

89

EPt2ES 4IPDES 4EPESEP

32.9034.0033.3335.0036.0539.4837.80

1.993.092.424.095.148.576.89

2.073.612.965.165.018.756.73

-0.08-0.52-0.04-0.200.13

-0.170.01

0

0

0

0

.0

.0

.0

.0

19

********************************************* DATE 731113 ** ORIGIN TIME 1510: 3.42 UTC ** ** REGION SUMMERVILLE-MIODLETON PLACE ** LATITUDE 32:55.39 N ** LONGITUDE 80:11.35 W ** DEPTH 0.68(km) ** Fixed Depth Solution ** ** MAG(D) 1.4 *********************************************



2.17 -123.00 9.37 -33.00 11.35 vertical

STATION DIST--AZM--AIN-- PHASE TIME--TOBS TCAL--RES DMAG (km) (degHdeg) (sec) (sec) (sec) (sec)

HBFMKC

SGSJSC

1732

42180

.7

.7

.5

.2

27425

315327

9189

8847

IPDIPDESIPDEP 4ES

5.918.8612.9510.5427.6053.20

2.495.449.537.1224.1849.78

2.955.459.517.07

28.1749.16

0.04-0.010.03

-0.10-3.990.62

11

00

.7

.1

.0

.0

20

********************************************* DATE 731219 ** ORIGIN TIME 1016:18.46 UTC ** ** REGION SUMMERVILLE-MIDDLETON PLACE ** LATITUDE 32:59.79 N ** LONGITUDE 80:15.99 W ** DEPTH 12.40(km) ** Free Depth Solution ** ** MAG(D) 0.0 *********************************************



2.26 -117.00 7.11 -27.00 16.74 vertical

STATION--DIST--AZM AIN--PHASE--TIME--TOBS--TCAL--RES--DMAG (km) CdegMdeg) (sec) (sec) (sec) (sec)

HBFMKC

SGS

12.630.1

31.6

23645

314

134111

109

IPDIPCISIPC

20232724

.87

.82

.81

.20

2.415.369.355.74

2.915.369.355.59

0.000.000.000.00

00

0

.0

.0

.0

21

********************************************* DATE 740528 ** ORIGIN TIME 501:34.29 UTC ** ** REGION BOWMAN ** LATITUDE 33:21.81 N ** LONGITUDE 80:42.38 W ** DEPTH 6.75(km) ** Free Depth Solution ** ** MAG(D) 1.7 *********************************************

Num

68%

.Obs. 10

Confidence Semi-Axi s

Gap 183

El 1 ipse and Length (km) 0.43 1.13 1.95

RMS 0.08

Vert i cal Trend

-40.00 -130,00 vert i cal

Qual i A

Devi at

ty

ion

STATION--DIST--AZM AIN--PHASE--TIME--TOBS--TCAL--RES--DMAG (km) (deg)Cdeg) . (sec) (sec) (sec) (sec)

OSC

SGS

PBS

SMAHBFNHSJ8C

22

26

42

465694113

.5

.2

.2

.5

.7

.3

.7

331

136

103

51147110333

101

98

89

87837267

IPCISIPDESIPCESEP-EP-EPEP-

38.2241.2539.0842.4541.6846.8242.3644.1449.6253.33

3.936.964.798.167.3912.538.079.8515.3319.04

4.056.854.677.897.3612.448.079.7815.9218.96

-0.120.11

-0.020.020.030.090.000.07

-0.140.09

1

1

0

1002

.7

.4

.0

.4

.0

.0

.3ES 4 65.95 31.66 32.06 -0.39

LHS 124.1 356 64 EP 4 54.20 19.91 20.55 -0.49 0.0

22




2.87 -70.00 14.34 20.00 88.96 vertical

STATION--DIST--AZM AIN--PHASE TIME--TOBS TCAL--RES--DMAG (km) (deg)Cdeg) (sec) (sec) (sec) (sec)

HBF

SGS

NHS

16.

34.

44.

5

2

3

242

308

80

102

94

92

IPESIPES 4IP

39.0040.6042.5046.8044.00

2.363.965.8610.167.36

2.814.905.719.977.37

0.05-0.070.00

-0.07-0.01

1

0

0

.0

.8

.0VSC 78.6 260 88 EP 4 42.50 5.86 13.05 -7.19 0.0

23

********************************************* DATE 741122 ** ORIGIN TIME 525:56.24 UTC ** ** REGION SUMMERVILLE-MIDDLETON PLACE ** LATITUDE 32:55.28 N ** LONGITUDE 80: 8.65 W ** DEPTH 7.56(km) ** Free Depth Solution ** ** MAG(D) 3.8 *********************************************

Num.Obs. Gap RMS Quality 10 202 0.13 B


1.03 -102.00 2.02 -12.00 2.90 vertical

STATION DIST--AZM--AIN--PHASE--TIME TOBS--TCAL RES--DMAG (km) CdegMdeg) (sec) (sec) (sec) (sec)

HBFNHSPBSSGSSMAvscOSCGVSJSCLHS

21.939.941.245.780.084.993.5

175.9182.7183.4

27365

344311348267317295326340

108989897909089484848

IPCOIPDOIPDOIPDOEP 3IPDEPEPIPDIPC

59.552.953.254.169.75

10.2811.3523.5024.0523.75

3.316.717.017.92

13.5114.0415.1127.2627.8127.51

3.836.726.927.65

13.2714.0715.4826.8827.7127.80

-00000

-0-0

00

-0

.02

.00

.04

.12

.24

.02

.21

.38

.11

.38

0030430000

.0

.0

.6

.0

.0

.9

.0

.0

.0

.0

24

********************************************* DATE 741122 ** ORIGIN TIME 622:^4.44 UTC ** ** REGION SUMMERVILLE-MIDDLETON PLACE ** LATITUDE 32:53.51 N ** LONGITUDE 80: 8.71 W ** DEPTH 9.64(km) ** Free Depth Solution ** ** MAG(D) 2.7 *********************************************

Num.Obs. Gap RMS Quality 9 208 0.09 C


0.70 -87.00 2.85 3.00 5.67 vertical

STATION--DIST--AZM--AIN--PHASE--TIME--TOBS--TCAL--RES--DMAG (km) (degMdeg) (sec) (sec) (sec) (sec)

HBF

NHSPBSSGS

SMAVSCosc

GVSJSCLHS

22

414447

838495

177185186

.3

.5

.3

.9

.2

.1

.8

4.3.5

282

61346314

349269319

296326341

112

10110098

929190

484848

IPCOES 2IPDOEP 3EP-ES 3EP 3EP 3EP-3ES 4EP 4EP 4EP 4

47.9450.6351.4652.2852.6158.5758.6758.7359.9172.3012.5412.7312.68

3.506.197.027.848.1714.1314.2314.2915.4727.8628.1028.2928.24

4.006.987.027.488.0514.0513.8014.0415.8627.6826.8427.8027.94

-0.010.08

-0.010.30

-0.03-0.180.430.25

-0.250.441.260.480.19

2.

2.0.2.

0.2.2.

0.0.0.

8

708

047

000

25

******************************************** DATE 750428 * ORIGIN TIME 546:52.63 UTC *

*REGION SUMMERVILLE-MIDDLETON PLACE * LATITUDE 33: 0.11 N * LONGITUDE 80:12.97 W * DEPTH 10.20(km) *

Free Depth Solution **

MAG(D) 3.1 *********************************************

Num.Obs. Gap RMS Quality 10 163 0.10 A


0.82 -109.00 1.10 -19.00 2.01 vertical


HBFPBS

SGSNHSSMAVSCOSCGVSJSCLHS

16.31.

34.43.70.79.82.

166.171.172.

91

87123158

243352

30880

352260316293326341

120106

10410094929248 48

48

IPCEPtES 2IPCOIPDOEP-2IPCIPDEPEP-EP 4

55.3958.1461.8458.830.004.485.756.0018.3018.5018.61

2.765.519.216.207.3711.8513.1213.3725.6725.8725.98

3.265.399.405.987.40

11.6713.1513.6625.4126.0726.22

0.000.07

-0.280.07

-0.020.19

-0.03-0.140.26

-0.19-0.34

32

30230000

.4

.8

.4

.0

.9

.1

.0

.0

.0

.0




1.79 -44.00 4.47 -134.00 5.14 vertical

STATION--DIST--AZM--AIN--PHASE--TIME--TOBS--TCAL--RES DMAG (km) (deg)Cdeg) (sec) (sec) (sec) (sec)

NHS

PBSHBFSGSOSCVSCLHS

JSC

GVSPRM

26

507374

105132163

178

200259

.2

.0

.5*l.3.2.9

.0

.1

.0

186

266236260284249322

307

279289

106

979292884848

48

4848

IPC2ES 2EP-2EP-2EP 2EP-3EP 3EP 2ES 4EPt3ES 3EP 3EPt2

40.4543.8544.5047.7548.1053.1557.051.30

22.003.50

24.055.7513.00

4.547.948.5911.8412.1917.2421.1425.3946.0927.5948.1429.8437.09

4.557.948.3812.2112.3117.4121.4825.3344.2127.0547.2029.7236.89

-0.010.000.160.13

-0.27-0.02-0.35-0.051.700.540.940.110.20

1

002000

2

00

.9

.0

.0

.1

.0

.0

.0

.6

.0

.0

27

********************************************* DATE 760428 ** ORIGIN TIME 615:54.11 UTC ** ** REGION SUMMERVILLE-MIDDLETON PLACE ** LATITUDE 33:45.05 N ** LONGITUDE 81:40.09 W ** DEPTH 0.34(km) ** Fixed Depth Solution ** ** MAG(D) 1.8 *********************************************

Num.Obs. Gap RMS Quality 14 105 0.21 8


0.79 -92.00 1.14 -2.00 4.53 vertical


GVS

CH5JSC

PRM

CH6OSC

LHS

SGS

PBS

HBF

NHS

24

6069

74

8081

113

124

140

150

193

.2

.9

.8

.1

.1

.7

.2

.0

.6

.6

.2

225

26833

300

280107

45

120

112

127-

113

89

8786

86

8585

83

83

81

47

47

IPDIS 4EPEPESIPCES 4EPEPESEPES 4EPtESEPtES 4EPt4ESEP

57.9760.674.155.7014.446.4515.027.707.6017.7012.7026.4314.9029.7017.7034.1519.5037.0023.85

3.866.5610.0411.5920.3312.3420.9113.5913.4923.5918.5932.3220.7935.5923.5940.0425.3942.8929.74

4.037.0310.1411.6120.2712.3421.5313.3313.5923.7218.8232.8420.5935.9423.3340.7224.6142.9529.79

-0.16-0.46-0.10-0.020.070.01

-0.610.260.050.14

-0.33-0.690.05

-0.600.21

-0.761.280.81

-0.05

1

02

0

00

0

0

0

0

0

.6

.0

.1

.0

.0

.0

.0

.0

.0

.0

.0

28




0.83 -107.00 1.32 -17.00 2.15 vertical

STATION--DIST--AZM--AIN--PHASE--TIME--TOBS TCAL--RES--DMAG (km) (deg)Cdeg) (sec) (sec) (sec) (sec)

H8F

PBSSGS

NHSVSC

14

3133

4676

.4

.7

.6

.2

.7

242

356311

79260

133

111110

10495

IPDESEP-EPES 4EP-EP

45.4047.3048.2548.6951.0450.4555.30

2.854.755.706.148.497.9012.75

3.275.715.685.9610.397.9112.79

0.08-0.09-0.030.03

-2.16-0.01-0.04

0

01

10

.7

.0

.3

.4

.0

29

********************************************* DATE 760828 ** ORIGIN TIME 2315:39.56 UTC ** ** REGION SUMMERVILLE-MIDDLETON PLACE ** LATITUDE 33: 5.70 N ** LONGITUDE 80:10.94 W ** DEPTH .2.51(km> ** Fixed Depth Solution ** ** MAG(D) 0.6 *********************************************



4.94 -67.00 26.78 23.00 99.00 vertical

STATION DIST--AZM--AIN--PHASE--TIME--TOBS--TCAL--RES--DMAG (km) (deg)Cdeg) (sec) (sec) (sec) (sec)

HBF

SGSPPSNHS

25

323239

.6

.6

.9

.9

226

28915694

94

929291

EP-2ES 2EPt2EP 4IPD1

43.3546.1545.1546.2546.20

3.796.595.596.696.64

4.287.475.445.486.64

0.01-0.010.001.210.00

0

000

.4

.0

.0

.7ES 4 50.60 11.04 11.59 -0.55

30




1.26 -35.00 2.70 -125.00 4.84 vertical

STATION--DIST AZM--AIN--PHASE--TIME--TOBS--TCAL--RES--DMAG (km) (deg)Cdeg) (sec) (sec) (sec) (sec)

vsc

osc

MTT

SGSHBF

PBSJSC

PRM

NHS

LHS

44

70

70

8499

108126

136

154

158

.9

.2

.4

.2

.6

.2

.7

.5

.9

.3

131

51

343

86104

827

320

93

21

93

89

89

8866

8684

47

47

47

EP+2ES 2EP 2ES 2EP-2ES 2EP 2EP 2ES 2EP 4EP-3ES 2EPf3ES 2EP 3ES 3EP-3ES 3

42.7547.9046.9055.6047.6056.0049.6552.0563.3553.5556.5570.9558.1074.300.35

18.451.20

19.20

7.3112.4611.4620.1612.1620.5614.2116.6127.9118.1121.1135.5122.6638.8624.9143.0125.7643.76

7.4913.0611.6620.3411.7020.4113.9716.5028.7917.9220.9636.5822.4339.1424.6743.0525.0843.77

-0.17-0.60-0.040.080.27

-0.200.090.620.000.140.15

-1.060.23

-0.280.24

-0.040.58

-0.18

0

0

2

00

02

2

2

0

.0

.0

.2

.0

.0

.0

.4

.7

.5

.0

31




0.46 -50.00 0.87 40.00 1.71 vertical


osc

SGS

PBS .

HBFSRPN

MTT

NHSJSC

LHS

PRM

21

27

43

5781

95

95112

123

171

.3

.4

.3

.9

.4

.3

.5

.5

.2

.9

332

136

104

147267

296

110334

356

297

102

97

88

8275

71

7167

65

55

EP-ISEPtESEPESEP*EP*ESEPES 4EPEP-ESEPESEPES 4

38.2541.0539.2043.2541.9047.3044.3948.4057.8050.6062.5050.1753.3066.0554.7068.801.65

24.00

3.816.614.768.817.4612.869.9513.9623.3616.1628.0615.7318.8631.6120.2634.3627.2149.56

3.866.524.878.237.5412.759.9813.8523.4216.0827.1816.1118.7931.7720.4234.5427.4846.47

-0.050.09

-0.260.33

-0.080.11

-0.030.11

-0.060.080.880.070.07

-0.16-0.020.07

-0.273.08

0

1

0

00

0

02

2

0

.0

.0

.0

.0

.0

.0

.0

.0

.3

.0

32

********************************************* DATE* ORIGIN TIME** REGION BOWMAN* LATITUDE* LONGITUDE* DEPTH*** MAG(D)

760922852:21.27 UTC

33:23.71 N80:40.95 W1.03(km)

Free Depth Solut

0.8

*******

i on ***

********************************************

Num.Obs. Gap10 120

RMS0.14

Qua! 1 1 yB


0.61 -45.00 1.35 45,00 3.31 vertical

STATION--DIST AZM AIN PHASE TIME TOBS TCAL RES DMAG (km) (deg)Cdeg) (sec) (sec) (sec) (sec)

OSC

SGS

PBS

HBFSRPN

JSC

LHS

20

27

41

5884

111

120

.8

.5

.1

.6

.6

.6

.8

320

145

108

151265

331

354

87

85

81

7670

64

62

EP+ESIPD2ESEP-ES 3EP 4EPtES 4EP 3ES 4EP 3ES

24.9027.6025.8429.7528.6233.9033.1336.0045.4040.0552.6541.1555.60

3.636.334.578.487.3512.6311.8614.7324.1318.7831.3819.8834.33

3.696.244.878.237.2412.2510.2814.6724.8119.0432.2020.4834.64

-0.060.09

-0.440.000.110.381.580.06

-0.68-0.26-0.82-0.45-0.05

0

0

0

00

0

0

.0

.8

.0

.0

.0

.0

.0

33


*REGION BOWMAN * LATITUDE 33:22.25 N *

* LONGITUDE 80:42.46 W ** DEPTH 4.13(km) ** Free Depth Solution ** ** MAG(D) 1.1 *********************************************

Num

68X

.Obs. 18

Confidence Semi-Axi s

Gap 108

Ellipse Length( 0.47 0.71 2.11

RMS 0.14

and Vertical km) Trend

-43.00 -133.00 vertical

Qual i A

Deviat

ty

ion

STATION DIST--AZM AIN--PHASE TIME--TOBS--TCAL--RES--DMAG (km) (deg)Cdeg) (sec) (sec) (sec) (sec)

OSC

SGS

PBS

HBFVSC

SRPN

NHSMTT

JSC

LHS

PRM

21

26

42

5763

82

9496

112

123

172

.7

.9

.6

.5

.2

.2

.7

.0

.9

.3

.6

330

137

104

148210

267

110296

333

356

297

95

92

85

8078

73

7069

65

63

54

IPCESIPDESEPESEP*EPESEP +ES 3EPEP-ES 3EPES 4EPESEP

18.0420.7518.9622.3921.6126.9524.2025.1832.8028.0037.6029.7530.7242.0533.0045.7034.8248.6542.15

3.876.584.798.227.4412.7810.0311.0118.6313.8323.4315.5816.5527.8818.8331.5320.6534.4827.98

3.866.534.748.027.44

12.589.9710.9418.5014.1023.8416.1316.3327.6219.0232.1620.6234.8727.83

0.010.05

-0.10-0.050.000.200.050.070.13

-0.27-0.41-0.100.220.26

-0.19-0.630.18

-0.140.15

1

1100

0

00

0

0

0

.0

.2

.1

.0

.0

.0

.0

.0

.0

.0

.0-

34


Num

68%

.Obs. 13

Conf i dence Semi-Axi s

Gap 148

Ellipse Length( 0.52 1.32 2.06

RMS 0.12

and Vertical km) Trend

-55.00 35.00

vertical

Qua! i A

Deviat

ty

ion

STATION DIST--AZM AIN--PHASE--TIME T08S--TCAL RES--DMAG (km) (deg)Cdeg) (sec) (sec) (sec) (sec)

oscSGS

PBS

HBFNHS

MTT

JSC

LHS

PRM

21

27

42

5794

95

112

122

172

.3

.2

.7

.9

.9

.7

.5

.8

.4

329

138

104

148111

296

333

356

297

96

92

85

8070

70

66

63

54

EPtES 3EP + 2ES 4EPESEP + 2EP-3ES 4EPES 3EPESEP 2ESEP 4

14.4017.2015.3219.7018.0523.4020.5526.0037.9027.0038.4529.4042.6030.7045.1037.35

3.806.604.729.107.4512.809.9515.4027.3016.4027.8518.8032.0020.1034.5026.75

3.796.414.818.137.46

12.6110.0416.1427.3016. 2S27.5218.9232.0020.5234.7027.76

0.010.19

-0.240.72

-0.010.19

-0.09-0.290.760.120.33

-0.120.00

-0.270.05

-1.01

0

1

1

00

0

0

0

0

.0

.2

.0

.0

.0

.0

.0

.0

.0ES 4 59.10 48.50 46.94 1.55

35

********************************************* DATE 761114 ** ORIGIN TIME 2112:12.01 UTC ** *

REGION SUMMERVILLE-MIDDLETON PLACE * LATITUDE 32:57.66 N * LONGITUDE 80:11.28 W * DEPTH 4.36(km) *


MAG(D) 1.2 *********************************************



0.90 -105.00 1.52 -15,00 5.15 vertical

STATION D1ST--A2M--AIN PHASE--TIME--TOBS--TCAL--RES--DMAG (km) (deg)Cdeg) (sec) (sec) (sec) (sec)

MGS

BCS

CCS

HBF

PPS

SGS

8

11

17

18

20

39

.4

.1

.3

.0

.6

.7

148

78

201

260

138

310

117

111

103

102

101

94

IPCISIPDES 2IPCES 2IPCES 2EPt3ES 2EP

13.5514.4414.0515.4014.9717.0214.4716.2915.4618.9118.95

1.542.432.043.392.965.012.464.283.456.906.94

1.562.731.983.452.955.153.085.373.496.096.62

0.08-0.120.06

-0.060.01

-0.14-0.12-0.22-0.040.810.17

0

0

0

10

1

.0

.0

.0

.0

.0

.3NHS 42.2 73 93 IPD 18.85 6.84 7.04 -0.19 1.4

36

********************************************* DATE 761121 *

ORIGIN TIME 1331:46.47 UTC **

REGION BOWMAN * LATITUDE 33:22.61 N * LONGITUDE 80:42.39 H *

* DEPTH 3.94(km) ** Free Depth Solution ** ** MAG(D) 1.3 *********************************************



0.40 -43.00 0.81 -133.00 2.10 vertical

STATION--DIST--AZM--AIN--PHASE--TIME--TOBS--TCAL--RES--DMAG (km) (degHdeg) (sec) (sec) (sec) (sec)

osc

SGS

PBS

HBF

VSCSRPN

SRPWMTT

JSC

LHSPRM

21

27

42

58

6382

8395

112

122172

.2

.3

.6

.0

.8

.3

.4

.8

.4

.6

.4

329

138

105

148

210266

257296

333

356297

95

91

85

79

7873

7269

65

6354

IPDESIPDESEPtESEPfESEPIPCES 3EP 4EP 4ES 3EP 2ESEP 2EP 2ES 4

50.2852.9151.3154.7553.9159.2556.5263.7057.450.709.902.003.3014.305.0518.456.5514.6532.70

3.816.444.848.287.4412.7810.0517.2310.9814.2323.4315.5316.8327.8318.5831.9820.0828.1846.23

3.776.374.818.147.4512.6010.0717.0211.0614.1223.8714.3116.3127.5818. 9432.0320.5427.8247.04

0.050.07

-0.12-0.11-0.010.18

-0.010.21

-0.070.12

-0.441.220.520.25

-0.36-0.05-0.300.37

-0.80

1

1

1

0

00

00

0

00

.2

.3

.4

.0

.0

.0

.0

.0

.0

.0

.0

37

********************************************* DATE 761122 ** ORIGIN TIME 30:51.39 UTC ** ** REGION BOWMAN* LATITUDE 33:22.70 N* LONGITUDE 80:42.77 W* DEPTH 1.47(km)* Free Depth Solution* ** MAG(D) 1.9 *********************************************



0.43 -44.00 0.73 -134,00 2.66 vertical

STATION DIST--AZM--AIN--PHASE--TIME--TOBS TCAL RES--DMAG (km) (deg)Cdeg) (sec) (sec) (sec) (sec)

oscSGS

HBF

VSC

SRPN

SRPW .

MTT

NHSJSC

LHS

PRM

20

27

58

63

81

82

95

95111

122

171

.7

.8

.4

.7

.7

.9

.2

.5

.9

.4

.8

330

138

148

210

266

256

296

111333

356

297

89

86

77

75

71

70

68

6864

62

53

EPfES 3IPCESEP +ESEP+ESEPtESEPt2ES 4EPES 3EPEP +ES 4EP 3ES 2EPf3ES 4

55.1357.8256.4459.801.688.802.5610.305.5015.205.4014.907.9519.357.3510.2423.0011.7626.7019.8539.60

3.746.435.058.4110.2917.4111.1718.9114.1123.8114.0123.5116.5627.9615.9618.8531.6120.3735.3128.4648.21

3.686.224.918.3110.2317.3011.1318.8214.1623.9414.3624.2816.3727.6916.4219.0632.2420.7035.0127.9947.33

0.060.21

-0.02-0.160.050.100.040.09

-0.05-0.13-0.35-0.780.180.27

-0.02-0.22-0.63-0.190.550.470.87

1

1

1

1

0

0

0

02

0

0

.6

.7

.8

.8

.0

.0

.0

.0

.6

.0

.0

38




0.58 -41.00 1.92 -131.00 2.33 vertical

STATION--DIST--AZM--AIN--PHASE--TIME--TOBS--TCAL--RES DMAG (km) (deg)(deg) (sec) (sec) (sec) (sec)

OSC

SGS

PBSHBFMTT

JSC

LHS

20

27

415896

111

121

.8

.4

.7

.4 4

.8

4

324

142

107150295

332

355

99

94

878170

66

64

EPESEPES 2EPEPEPES 2EPESEP 2

53.5056.1554.6558.5057.2559.866.2017.858.40

21.559.70

3.716.364.868.717.4610.0716.4128.0618.6131.7619.91

3.736.314.858.217.2810.1016.3427.6318.7731.7420.26

-0.020.05

-0.140.250.18

-0.030.070.43

-0.160.0^

-0.20

0

1

000

0

0

.8

.0

9.0.0

.0

.0

39

********************************************

* DATE* ORIGIN TIME

LATITUDELONGITUDEDEPTH

MAG(D)

770118 1829:14.23 UTC

33: 2.53 N 80:12.82 W7.04(km)

Free Depth Solution

2.7

Num.Obs. 17

Gap 136

RMS 0.09

Quali ty A


0.60 -84.001.19 6.001.20 vertical

STATION D 1ST AZM AIM PHASE TIME TOBS TCAL RES DMAG (km) (deg)Cdeg) (sec) (sec) (sec) (sec)

SVSBCSMGS

HBFCCSPBSPPS

SGSOSCVSC

SRPW

SRPN

MTTJSCLHS

CHSPRMCH6BLA

81417

19252629

327980

128

132

153167168

210230233462

.8

.9

.5

.6

.4

.7

.2

.5

.3

.2

.6

.1

.9

.9

.6

.8

.5

.5

.9

202117157

232189350146

301314257

278

284

301325341

291300293358

128114111

109104103102

1009090

48

48

484848

48484848

IPDOIPCOIPCOESIPCOIPCOIP 4IPDOES 4IPC4EP 4EP 3ES 3EPIS 4IPDIS 0EP-3EP<-2EP 3ES 4EP 2EP 2EP 4EP 4ES 4

16.0716.9217.2219.5117.1618.5717.1219.2322.4920.5327.7627.9437.4835.2051.7035.9052.0039.5540.4640.8160.7146.2048.5649.2028.4068.701

1.852.703.005.292.944.352.905.018.276.3113.5413.7223.2620.9837.4821.6837.7825.3326.2426.5946.4931.9834.3434.9874.1814.481

1.862.733.125.443.444.364.564.978.665.5013.1513.3023.2221.1936.9821.6237.7324.2725.9726.0645.4731.1933.5833.9461.8207.87

-0.01-0.03-0.020.020.00

-0.01-1.710.04

-0.400.660.540.410.04

-0.210.500.060.050.860.270.430.850.790.761.04

12.366.61

0.0.0.

2.0.0.0.

2.2.2.

0.

0.

0.0.0.

0.0.0.0.

000

6000

775

0

0

000

0000

40

********************************************* DATE 770120 ** ORIGIN TIME 405:45.75 UTC ** ** REGION SUMMERVILLE-MIDDLETON PLACE ** LATITUDE 32:55.67 N ** LONGITUDE 80: 9.75 W ** DEPTH 6.63(km) ** Free Depth Solution ** ** MAG(D) 1.9 *********************************************

Num.Obs. 19

Gap 94

RMS 0.15

68% Confidence Ellipse and Vertical Semi-Axis Length(km) Trend

0.63 30.00 0.94 -60.00 1.48 vertical

Quality A

Deviation


MGS

SVSAYRT

BCS

SBRT

CCS

PPS

HBF

PBSSGSVSC

OSCSRPN

MTTJSCLHS

4

910

10

12

15

16

20

404383

91140

164181182

.0

.3

.3

.4

.9

.1

.3

.2

.1

.9

.2

.8

.4

.9

.1

.2

149

29914

55

322

215

135

272

346312266

318288

304326341

149

125122

122

116

113

111

107

979689

8848

484848

IPCOESEPEPtESIPDOESIP-0ESIPCOESEP 4ES 4IPCOES 4EP 4EPEPESEPEP+4ES 4EP 4EPEP 3ES

46.9747.4747.7147.7549.2347.8149.2248.4050.0048.6450.6048.8450.2048.7250.7151.7553.2959.5069.-460.559.00

25.6013.5513.5013.2634.29

1.221.721.962.003.482.063.472.654.252.894.853.094.452.974.966.007.54

13.7523.7114.8023.2539.8527.8027.7527.5148.54

1.282.231.882.033.542.033.552.404.202.734.772.915.073.516.136.727.35

13.8024.0715.2022.6739.5625.6527.6227.7548.42

0.05-0.330.08

-0.03-0.060.03

-0.070.250.060.160.090.19

-0.62-0.04-0.29-0.770.05

-0.04-0.36-0.250.580.291.960.13

-0.34-0.05

0

00

0

0

0

0

101100

000

.0

.0

.0

.0

.0

.0

.0

.8

.0

.9

.9

.0

.0

.0

.0

.0

41

********************************************* DATE 770226 ** ORIGIN TIME 1009:56.14 UTC ** ** REGION SUMMERVILLE-MIDDLETON PLACE ** LATITUDE 32:55.37 N* LONGITUDE 80:10.67 W* DEPTH 4.94(km)* Free Depth Solution** MAG(D) 1.5********************************************

Num.Obs. 13

Gap 103

RMS 0.05

Quali ty A


0.22 -73.00 0.34 17,00 0.58 vertical

STATION--DIST AZM AIN--PHASE--TIME--TOBS--TCAL RES--DMAG (km) (deg)Cdeg) . (sec) (sec) (sec) (sec)

MGS

SVS

BCS

CCSPPS

HBF

NHS

SGSVSCOSCSRPN-MTT

JSC

PRM

4

8

11

1317

18

42

438191139

164

1804

240

.5

.4

.8

.9 o

.8

.8

.3

.7

.2

.2

.0

.8

.4

130

308

57

211130

273

67

314267319289

304

326

302

137

120

112

109105

104

94

94888747

47

47

47

IPCESIPCOESIPDOES 3IPCOEP 4ESEP-ES 4IPDES 3EPEPEP 4EP 4ES 4EP 4ES 4EP 4ES 4EP 4

57.1557.8857.8058.8958.3059.6958.6459.2061.2258.8060.593.258.373.559.6513.8517.4036.2021.9641.8025.9045.0034.15

1.011.741.662.752.163.552.503.065.082.664.457.1112.237.4113.5117.7121.2640.0625.8245.6629.7646.8638.01

1.111.931.612.812.133.712.442.935.113.225.617.1312.457.2113.5615.1222.7239.6425.7344.9027.7748.4635.02

0.00-0.020.05

-0.060.03

-0.160.060.13

-0.03-0.06-0.29-0.02-0.220.05

-0.052.73

-1.460.42

-0.110.411.990.402.99

0

0

0

00

1

1

1000

0

0

0

.0

.0

.0

.0

.0

.4

.5

.7

.0

.0

.0

.0

.0

.0

42

********************************************* DATE 770318 ** ORIGIN TIME 736: 8.63 UTC ** ** REGION SUMMERVILLE-MIDDLETON PLACE ** LATITUDE 32:56.04 N ** LONGITUDE 80:10.48 W ** DEPTH 4.19(km) ** Free Depth Solution ** ** MAG(D) 1.2 *********************************************

Num.Obs . 9

68% Confidence Semi-Axi s

Gap 122

RMS 0.07

Ellipse and Vertical Length(km) Trend 0.43 -93.00 0.64 -3.00 1.41 vert ical

Quali ty A

Deviation

STATION--DIST--AZM--AIN--PHASE--TIME--TOBS TCAL--RES--DMAG (km) (degHdeg) (sec) (sec) (sec) (sec)

MGS

SVS

BCS

CCSHBF

NHSSGSSRPN

MTT

LHS

5

7

11

1519

4242

139

163

181

.2

.9

.0

.1

.0

.0

.6

.1

.5

.2

142

299

61

210270

69312288

304

341

129

117

110

105101

939347

47

47

IPCOESIPCOESIPDOESIPCOIPCES 4EP-EP 4EP 4ES 4EP 4ES 4EP 4

9.6810.2610.1611.2310.6212.0311.3011.2513.0315.5816.4532.0048.4035.5555.2539.85

1.051.631.532.601.993.402.672.624.406.957.82

23.3739.7726.9246.6231.22

1.111.931.492.591.953.402.603.235.647.007.10

22.7939.7625.7644.9527.90

0.05-0.120.050.010.050.010.07

-0.11-0.36-0.050.570.590.010.961.333.22

0

0

0

01

110

0

0

.0

.0

.0

.0

.0

.2

.2

.0

.0

.0

43

********************************************* DATE 770330 ** ORIGIN TIME 827:47.78 UTC ** ** REGION SUMMERVILLE-MIDDLETON PLACE *

LATITUDE 32:57.14 N * LONGITUDE 80:11.04 W * DEPTH 7.85(km) *


* MAG(D) 2.9 *********************************************

Num.Obs. 16

Gap 91

RMS 0.12

Qua!i ty A


0.64 -83.00 0.92 7,00 1.34 vertical

STATION--DIST--AZM AIN--PHASE TIME--TOBS--TCAL--RES DMAG (kw) (deg)Cdeg) (sec) (sec) (sec) (sec)

SVSMGS

BCSCCS

HBFPPSPBSSGSNHSVSCOSCSRPW

SRPN

-SRPD

MTTJSCLHSPRM

6.37.3

11.016.5

18.319.637.040.642.181.488.4133.0

137.6

144.4

161.6177.7178.9238.2

287147

73204

26313734831172

264317282

288

279

303326341302

141136

1251H

1121111009898919048

48

48

48484848

IPDOIPCOESIPDOIPCOES 2IPCIPCOEP 4IPDIPDOEP*EP*EP 2ES 4EP 2ES 4EP 4ES 4EP 4EPEPEP 3

49.49.50.50.50.52.50.51.54.54.54.1.2.9.

26.9.

26.11.29.13.14.14.22.

3649460698565632429184262620409000601055528074

1.581.712.682.283.204.782.783.546.647.137.0613.4814.4821.4238.6222.1238.2223.8241.3225.7726.7427.0234.96

1.661.783.102.233.025.273.293.496.256.837.0813.5014.6521.6537.7722.2038.7423.0340.1925.1127.0827.2234.43

-0.080.04

-0.240.050.18

-0.490.000.050.340.15

-0.02-0.02-0.02-0.220.85

-0.08-0.520.791.130.46

-0.33-0.300.54

00

00

20022020

0

0

d300

.0

.0

.0

.0

.8

.0

.0

.7

.9

.0

.8

.0

.0

.0

.0

.3

.0

.0

44


Num.Oba. Gap RMS Quality 11 89 0.18 B


1.26 -79.00 2.32 11.00 3.82 vertical

STATION--DIST AZM AIN--PHASE--TIME--TOBS--TCAL--RES--DMAG(km) (deg)Cdeg) (sec) (sec) (sec) (sec)

MGS 9.4 122 142 IPCO 15.87 2.47 2.53 0.04 0.0ES 2 17.06 3.66 4.41 -0.58

CCS 14.2 191 130 IPDO 16.56 3.16 3.07 0.08 0.0ES 3 18.09 4.69 5.36 -0.68

HBF 14.2 266 130 IPDO 15.79 2.39 3.07 -0.19 2.4BCS 15.1 73 128 IPDO 16.83 3.43 3.19 0.24 0.0PPS 21.8 127 118 IPCO 17.61 4.21 4.11 0.10 0.0PBS 37.5 355 106 EP 4 20.83 7.43 6.49 0.89 0.0SGS 38.5 316 105 IPC 20.30 6.90 6.65 0.10 2.4

ES 4 23.55 10.15 11.60 -1.71NHS . 46.3 72 102 IPD 20.99 7.59 7.87 -0.28 0.0OSB 88.5 319 92 EP- 28.09 14.69 14.67 0.02 2.3

ES 4 38.45 25.05 25.60 -0.55MTT 159.0 304 48 EP 4 37.91 24.51 24.34 -0.03 0.0

ES 4 58.70 45.30 42.47 2.48JSC 176.5 327 48 EP 4 40.39 26.99 26.46 0.52 3.0

ES 4 62.45 49.05 46.18 2.87LHS 178.8 342 48 EP 40.22 26.82 26.74 -0.02 0.0PRM 235.5 303 48 EP 4 47.81 34.41 33.63 0.78-0.0

ES 4 78.25 64.85 58.68 6.17CHF 250.0 299 48 EP 4 50.35 36.95 35.39 1.55 0.0

45

********************************************* DATE 770605* ORIGIN TIME 42:29.73 UTC** REGION SUMMERVILLE-MIODLETON PLACE* LATITUDE 33: 3.13 N* LONGITUDE 81:24.73 W* DEPTH 3.49(km) ** Free Depth Solution ** ** MAG(D) 2.7 *********************************************

Num.Obs. Gap RMS Quality 15 213 0.22 8


0.99 -59.00 3.56 31,00 3.06 vertical

STATION D 1ST--AZM AIN--PHASE--TIME--TOBS TCAL--RES DMAG (km) (deg)Cdeg) (sec) (sec) (sec) (sec)

SRPWSRPN

OSBMTTSGSHBF

SVS

PBS .CCSMGSBCSJSC

PRMCHF

NHSLHS

22.734.8

76.280.385.597.6

109.1

110.0111.4120.1125.5136.8

144.5153.4

154.6167.9

317332

443457998

95

7710498946

322315

8919

9794

88888786

85

8585848447

4747-

4747

EP-IP 0ES 4EPEPEP-EP-ES 4EP-ESEP 4EP-EPEPEP-ESEP-EP 4ES 4EPtEP 4

33.35.41.42.43.43.45.58.47.61.48.47.49.50.52.69.52.54.73.54.56.

607580291084875260714398387035529955804163

3.876.0212.0712.5613.3714.1116.1428.7917.8731.9818.7018.2519.6520.9722.6239.7923.2624.8244.0724.6826.90

3.825.8110.1412.6513.3314.1816.1828.2318.0931.5618.2318.4619.8920.7922.5939.4223.5224.6142.9424.7526.36

0.050.211.93

-0.10-0.16-0.230.461.43

-0.220.410.42

-0.21-0.140.180.030.37

-0.260.211.12

-0.080.44

0.0.

2.0.2.2.

0.

0.0.0.0.0.

0.0.

0.0.

00

6077

0

00000

00

00

46

********************************************DATE ORIGIN TIME

770622 2043:40.06 UTC

REGION SUMMERVILLE-MIDDLETON PLACE LATITUDE 32:59.70 N LONGITUDE 80: 9.30 W DEPTH 1.34(km)


MAG(D) 2.1********************************************

Num.Obs. 10

Gap 123

68% Confidence Ellipse and Semi-Axis Length(km)

1.16 1.78

14.95

RMS 0.17

Vertical Trend

-99.00 -9.00

vert ical

Quali ty D

Deviation


BCSsvsMGS

PPSCCSHBFPBSNHSSGSVSCOSBLHSPRM

7.9.

10.

21.21.21.33.38.39.84.88.175.238.

929

8991397741

101252173

15020525234277

303261314340300

999896

92929290908986854747

IPDOIPDOIPDESEP 4IPCEPEP 4IPDEP +EP 2EPEP 4EP 4

41.2841.4041.8343.4242.6043.5943.1946.5146.4547.1654.2854.708.4315.76

1.221.341.773.362.543.533.136.456.397.1014.2214.6428.3735.70

1.341.551.833.203.643.663.665.516.376.6414.0814.7527.5235.14

-0.12-0.210.040.33

-1.10-0.13-0.030.890.020.310.14

-0.110.750.57

000

0000000200

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.1

.0

.0

47

* DATE 770823 ** ORIGIN TIME 1345: 0.03 UTC ** ** REGION SUMMERVILLE-MIDDLETON PLACE ** LATITUDE 32:56.31 N ** LONGITUDE 80: 9.79 W ** DEPTH 7.57(km) ** Free Depth Solution ** ** MAG(D) 2.3 *********************************************



0.67 -127.00 0.78 -37.00 1.24 vertical


MGS

SVS

BCS

CCSPPS

HBF

PBSSGSVSCOSBMTTJSCLHSPRM

5

8

9

1617

20

38438392164180181240

.1

.7

.8

.1

.2

.1

.9

.1

.2

.7

.2

.1

.0

.7

155

293

61

212138

268

346311265317303326341302

146

131

127

114113

109

9997908948484848

IPCOESEPtES 2IPDOES 3IPCEP 4ES 4IPCES 4EP 4EP 2EPEPtEP 4EP 4EP 4EP 4

1.332.482.013.162.153.343.012.704.833.135.036.427.40

13.8115.2926.2027.8127.6135.83

1.302.451.983.132.123.312.982.674.803.105.006.397.3713.7815.2626.1727.7827.5835.80

1.502.631.903.322.043.572.943.105.413.556.206.557.2313.8015.3525.4627.3927.5134.75

-0.110.000.08

-0.190.07

-0.260.04

-0.44-0.620.05

-0.33-0.22-0.01-0.02-0.090.510.38

-0.031.04

0

0

0

00

2

02000200

.0

.0

.0

.0

.0

.2

.0

.0

.0

.0

.0

.7

.0

.0

48

********************************************* DATE 770825 ** ORIGIN TIME 420: 7.15 UTC ** ** REGION BOWMAN ** LATITUDE 33:22.87 N ** LONGITUDE 80:41.82 W ** DEPTH 9.01(km) ** Free Depth Solution ** ** MAG(D) 2.9 *********************************************



0.41 -42.00 1.00 -132.00 1.75 vertical

STATION--DIST--AZM AIN--PHASE--TIME TOBS--TCAL--RES--DMAG (km) (deg)Cdeg) (sec) (sec) (sec) (sec)

OSBSGSPBS

HBF

SVSVSCBCSMGS *

CCSPPSMTTJSC

LHSCHSCH6CHF

222741

57

62647374

758796112

122156177189

.9

.1

.9

.9

.0

.7

.3

.7

.0

.1

.3

.3

.2

.1

.9

.2

323140106

149

138211127136

147135295332

355284288292

10610292

85

83827979

79757368

66595553

IPDIPCOEPtES 3EP +ES 4IPCEP-IPCOIPCESEPtEP-EPEP-ESEP-2EP 2EP 4EPt4

11.4012.0714.5719.8717.2821.1417.7718.2019.6119.7628.3719.7621.8423.3125.8438.4027.1032.6036.7037.65

4.254.927.4212.7210.1313.9910.6211.0512.4612.6121.2212.6114.6916.1618.6931.2519.9525.4529.5530.50

4.224.887.3012.359.9416.8110.6011.0512.4412.6721.4312.7214.6616.1318.6031.4620.1125.0528.0729.57

-0.07-0.110.120.370.19

-2.820.020.000.02

-0.06-0.21-0.110.030.040.09

-0.21-0.010.401.480.93

022

2

2000

0003

0003

.0

.8

.5

.7

.4

.0

.0 0

.0

.0

.0

.5

.0

.0

.0

.3

49




0.30 -39.00 1.08 -129.00 1.18 vertical

STATION--DIST--AZM--AIN--PHASE--TIME--TOBS--TCAL RES--DMAG (km) (deg)Cdeg) (sec) (sec) (sec) (sec)

OSB

SGS

PBS

HBFSVSMGSCCS

JSC

LHSPRM

23

27

40

58617475

112

121173

.1

.0

.8

.1

.7

.4

.1

.1

.3

.9

319

144

108

151139137148

332

354296

102

99

90

83827877

68

6555

EP +ESEPtESEP 2ESEPEP-EPtEP-ES 4EP 2ESEPtEP 4ES

36.4739.4337.2240.6339.0844.2542.2242.9344.8944.8852.2451.1763.7752.180.5118.96

4.257.215.008.416.8612.0310.0010.7112.6712.6620.0218.9531.5519.9628.2946.74

4.177.064.818.137.1112.039.99

10.6012.6812.7921.6218.6831.5820.0927.6746.80

-0.02-0.020.040.02

-0.250.010.010.11

-0.01-0.13-1.600.27

-0.030.020.62

-0.06

2

1

1

1000

0

00

.0

.9

.6

.8

.0

.0

.0

.0

.0

.0

50

********************************************* DATE 771110 *

ORIGIN TIME 1124:59.70 UTC **

REGION BOWMAN * LATITUDE 33:23.19 N * LONGITUDE 80:41.79 W * DEPTH 0.98(km) *


* MAG(D) 0.8 *********************************************

Num.Obs. 10

68% Confidence Semi-Ax i s

Gap 140

RMS 0.18

Ellipse and Vertical Length(km) Trend 0.91 -59.00 1.69 31.00 3.08 vertical

Quality B

Deviation


COWBOW

WMSROW

OSB

SGS

05

69

22

27

.7

.1

.1

.4

.5

.5

212102

318256

322

141

144100

9894

87

85

EPEPES 2EPEP-ESEPES 2EP-ES

0.450.851.250.851.903.154.056.954.708.35

0.751.151.551.152.203.454.357.255.008.65

0.220.921.561.101.682.843.996.754.878.23

0.13-0.07-0.52-0.250.02

-0.240.260.33

-0.020.16

00

00

0

1

.7

.7

.8

.9

.0

.0

51

********************************************

* DATE 771215 ** ORIGIN TIME 715:55.16 UTC ** *

REGION SUMMERVILLE-MIDOLETON PLACE *LATITUDE 32:58.98 N *LONGITUDE 80:15.87 W *DEPTH 13.12(km) *


* MAG(D) 2.0 *********************************************



0.73 -75.00 1.02 15.00 1.89 vertical

STATION DIST--AZM AIN--PHASE TIME--TOBS TCAL--RES--DMAG (km) (deg)Cdeg) (sec) (sec) (sec) (sec)

svsHBFMGS

AIN

BCS

PPSSGSPBSNHSBOMCOM

ROW

WMS. vsc

OS6MTTJSCLHS

PRM

2.12.15.

16.

18.

27.32.32.48.55.60.

65.

66.74.82.

153.170.173.

230.

200

7

0

488593

1

a47484

1

137242130

35

91

130315

078

321318

311

318261319304327343

302

171137130

127

125

11411011010210099

97

97959449,4949

49

IPCOIPIPDOES 3IPDOES 2IPDOESIPDOIPCIPCEP-EPtEP 4ES 4EPtES 4EP 4IPCEP-EP 4EP 3EP 4ES 4EP 4ES 4

57.2857.7558.4260.4458.6960.8158.8661.340.251.041.163.324.815.0511.705.9112.955.507.328.9519.3022.4020.8041.8530.7057.95

2.122.593.265.283.535.653.706.185.095.886.008.169.659.8916.5410.7517.7910.3412.1613.7924.1427.2425.6446.6935.5462.79

2.182.923.275.713.496.103.666.395.005.815.818.269.4310.1317.6810.9019.0311.0812.4013.7423.5525.6625.9845.3432.8657.35

-0.060.170.09

-0.260.04

-0.450.04

-0.210.09

-0.080.14

-0.100.12

-0.24-1.14-0.10-1.15-0.59-0.240.050.391.58

-0.441.182.665.44

000

0

0

021202

2

010000

0

.0

.0

.0

.0

.0

.0

.3

.9

.0

.0

.0

.0

.0

.9

.0

.0

.0

.0

.0


Num.Qbs. Gap RMS Quality 17 85 0.11 A


0.62 -96.00 0.81 -6.00 1.51 vertical

STATION--DIST AZM--AIN PHASE--TIME--TOBS--TCAL--RES--DMAG (km) (deg)Cdeg) (sec) (sec) (sec) (sec)

MGSSVSBCSCCSAINHBFPBSNHSSGSBOMCOMROW

WM3VSCOSB

MTTJSCLHSPRM

589

161819384142656974

758292

163179180240

.8

.1

.8

.4

.1

.8

.2

.0

.4

.1

.7

.8

.6

.9

.0

.'5

.3

.3

.0

15529065

2101

26634670

311317314309

315265317

303326341302

142132127114112110999897939291

919089

48484848

IPCOIPDOIPDOIPDOIPDOEPtEP 4EP-EP-EP+EPEPtESEP 4EPtEP-ES 4EP 4EPtEPtEP

45.0545.4545.6046.7047.0346.6050.6550.4550.9554.7055.2556.0564.9056.0057.3458.6565.257.6011.0011.1518.20

1.421.821.973.073.402.977.026.827.3211.0711.6212.4221.2712.3713.7115.0221.6223.9727.3727.5234.57

1.571.832.052.993.233.506.436.887.1110.8211.5712.4221.6712.5413.7415.2326.5825.3827.3127.4234.68

-0.050.00

-0.070.080.17

-0.020.54

-0.060.060.150.050.05

-0.31-0.02-0.03-0.21-4.95-1.610.060.00

-0.11

000000220202

020

0000

.0

.0

.0

.0

.0

.0

.6

.7

.0

.6

.0

.6

.0

.6

.0

.0

.0

.0

.0

53

*tt*ft*ft************5

DATEORIGIN TIME

REGION ADAMSLATITUDELONGITUDEDEPTH

MAG(D)

7712161114:34.11 UTC

RUN32:44.24 N80: 19.02 W8.07(km)

Free Depth Solution

2.1

*******A

*

*

Num.Obs. Gap RMS Quality25 213 0.16 A


0.92 -75.001.85 15.002.45 vertical

STATION--DIST--AZM--AIN--PHASE--TIME--TC8S--TCAL--RES--DMAG (kfr) (deg)Cdeg) (sec) (sec) (sec) (sec)

CCS

HBFMGS

T121

svsPPST122

BCSAIN

SGSPBSNHSvscBOW

COMROW

WMSOSB

MTTJSCLH$PRM

CHF

10

2224

24

262728

3543

5360647076

8082

86102

16619219fl241

254

.5

.4

.2

.6

.5

.7

.2

.5

.5

.7

.3

.3

.4

.9

.2

.7

.0

.4

.7

.1

.5

.9

.9

33

34543

29

147034

4019

3405

55283337

3333?7

333331

312333347308

304

127

108107

107

105105104

10198

9594939291

9190

9088

48484848

48

IPDOES 2IPDIPDOESIPCOES 4IPCOFP +IPCFS 4IPDOEP-ES 3IPCEP 3EP 2EP 2EP 2ESFP 2EP-ES 4EP 2EP + 2ES 4EP 4EPEPEPES 4EP 4

36.4237.9138.3038.6141.7438.7541.4538.8739.1639.1842.5040.4041.8047.0043.3844.5745.0646.1447.2856.7047.6548.0560.2548.6050.9364.540.183.423.959.7036.5811.90

2.013.503.894.207.334.34

7.044.464.754.778.095.997.3912.598.9710.1610.6511.7312.8722.2913.2413.6425.8414.1916.5230.1325.7729.0129.5435.2962.1737.49

2.193.813.944.227.36".277.464.574.764.848.456.017.3012.758.9710.0410.7011.7012.7622.2613.3013.7123.9214.2516.9429.5725.7128.7929. 5B34.8560.8236.43

-0.18-0.320.450.080.150.06

-0.42-0.11-0.01-0.08-0.36-0.020.08

-0.16-0.150.06

-0.050.020.01

-0.14-0.06-0.022.010.08

-0.43-0.56

-0.140.21

-0.140.431.351.06

0

00

0

000

00

22212

02

00

0000

0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.3

.0

.0

.9

.1

.0

.2

.0

.0

.0

.0

.0

.0

.0ES 4 39.40 64.99 63.57 1.42

54

**************************DATEORIGIN TIME

REGION ADAMSLATITUDELONGITUDEDEPTH

MAG(D)*******************

Num.Obs. Gap25 217

7712161125:31.80 UTC

PUN32:43.48 N80: 19.06 W7.10(km)

F ree Dept h Sol ut i

2.3******************

RMS0.15

*

******

on ***

********

(0 u a 1 i t yB


0.78 -81.00 1.48 9.00 2.51 vert i cal

STATION--DIST--AZM--AIN--PHASE--TIME--TCBS--TCAL--RES--DKAG(krr) (degMdeg) (sec) (sec) (sec) (sec)

CCSH8FMGS

T121

SVS

PPST122

BCS

AINSGSPBSNHSVSC

BOW

COM

ROM

MMSOSB

MTTJSCLHSPRM

CHF

112325

25

27

2829

36

4455616570

78

81

83

87103

167193199242

2554

.7

.8

.3

.8

.8

.2

.4

.6

.8

.0

.7

.2

.7

.1

.4

.8

.2

.6

.6

.3

.8

.7

.6

3034641

27

13

6733

39

19341

554

284

337

334

328

333332

313333347308

304

121105104

104

103

102102

99

9694939291

90

90

90

8988

48484848

48

IPDOIPDIPDOESIPCOES 4IPCOES 4EP +IPCES 4IPDES 3EP +IPCEPEP +EP +ES 3EPES 4EP-ESEP-ESEP 3EP 4ES 4EPEPEPEP 4ES 4EPES 4

33.9435.88?6. 1239.0636.3139. 1936.4039.5436.64 56.7340.1337,9842.2239.4940.9442.0242.6343.4651.8844.8555.0545.2555.2045.6556.1046,1048.5961.9358.060.731.907.65

37.658.80

36.55

2.144.084.327.264.517.394.607.744.844.93

8.336.1810.427.699.1410.2210.8311.6620.0813.0523.2513.4523.4013.8524.3014.3016.7930.1326.2628.9330.1035.8565.8537.00'64.75

2.274.114,34

7.584.437.744.758.294.815.008.736. 16

10.767.509.1710.2610.8311.7420.4912.9622.6213.5023.5613.9024.2514.4517.1529.9225.9229.0529.8535.0661.1736.6263.91

-0.130.470.07

-0.150.08

-0.35-0.15-0.550.02

-0.07-0.400.01

-0.340.18

-0.18-0.090.00

-0.08-0.41-0.010.46

-0.05-0.160.000,130.00

-0.360.210.14

-0.120.150.794.670.380.84

000

0

0

00

0

02222

2

0

2

00

0000

0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.4

.3

.3

.0

.2

.0

.2

.0

.0

.0

.0

.0

.0

.0

55

DATE ORIGIN TIME

771218 158:37.79

** ORIGIN TIME 158:37.79 UTC ** ** REGION ADAMS RUN ** LATITUDE 32:44.33 N ** LONGITUDE 80:17.54 W ** DEPTH 6.58(km) ** Free Depth Solution ** ** MAG(D) 1.8 *********************************************

Num.Obs. 15

Gap 291

RMS 0.14

Quality 8


1.25 -81.00 2.04 9.00 3.28 vertical

STATION--DIST--AZM--AIN--PHASE--TIME TOBS--TCAL RES--DMAG (km) (degMdeg) (sec) (sec) (sec) (sec)

CCS

PMS

MGSHBF

T121

SVS

T122

BCSSGSOSB

JSC

9

16

2223

23

25

26

3354103

193

.3

.1

.6

.0

.4

.8

.8

.9

.4

.4

.0

22

19

39340

24

9

31

38338330

332

125

111

105105

104

103

102

999487

48

IPDOES 2IPD4ES 4EP-IPDES 2IPDESEPtES 3IPCESEP-EPEP 3ESEP 4

39.5840.7039.6541.6141.6641.5044.2441.8944.8942.0845.0842.3845.7243.5046.8054.6567.618.39

1.792.911.863.823.873.716.454.107.104.297.294.597.935.719.0116.8629.8230.60

1.883.282.885.033.893.966.904.027.024.417.704.577.975.719.06

17.1129.8629.07

-0.09-0.37-1.02-1.210.080.250.420.080.08

-0.12-0.410.02

-0.040.00

-0.20-0.25-0.041.53

0

0

01

0

0

0

001

0

.0

.0

.0

.7

.0

.0

.0

.0

.0

.8

.0

56

********************************************* DATE 771220 ** ORIGIN TIME 2341:23.30 UTC ** *

REGION SUMMERVILLE-MIDDLETON PLACE * LATITUDE 33: 3.86 N * LONGITUDE 80:13.91 W * DEPTH 11.95(km) *


MAG(D) 1.8 *********************************************

Num.Obs. 10

Gap 115

RMS 0.14

68% Confidence Ellipse and Vertical Semi-Axis Length(km) Trend

1.65 -120.00 2.00 -30.00 5.23 vertical

Q u a 1 i t y C

Deviation


AIN

SVSBCS

HBFMGS

CCS

SGSNHSVSC

8

1017

2020

27

294479

.0

.7

.6

.0

.4

.6

.8

.4

.2

54

188122

223155

185

29989

255

146

137123

120119

112

11010294

IPDES 3IPDOIPDOES 4EPEPES 2EP-ES 2EP 3EP 4EP 4

25.7826.4526.0026.6428.4526.5027.1030.0828.4031.6928.6029.9036.35

2.483.152.703.345.153.203.806.785.108.395.306.6013.05

2.374.132.643.506.113.833.896.794.958.645.287.5713.16

0.11-0.980.06

-0.16-0.95-0.130.010.160.15

-0.25-0.13-0.97-0.11

0

10

20

0

100

.0

.5

.0

.1

.0

.0

.8

.0

.0

57

******************* * * *

***

Num

DATE 780907ORIGIN TIME 2253:22.96 UTC

REGION SUMMERVILLE-MIDOLETON LATITUDE 33: 3.80 N LONGITUDE 80:12.60 WDEPTH 9.96(km)

Free Depth Solut

MAG(D) 2.6********************************

.Obs. Gap RMS 28 56 0.12

PLACE

i on

*********

Qual i t y A


0.39 -26.00 0.59 -116.00 0.73 vertical

STATION--DIST--AZM--AIN--PHASE--TIME--TOBS--TCAL--RES-- (kir.) (degMdeg) (sec) (sec) (sec) (sec)

AINSVSBCSMGS

PBS

CCS

PPS

NHS

BOWCOW

WMSROW

OSBVSC

SRPW

SRPN

SRPD

JSC

LHSPRMCHF

6.11.15.19.

24.

27.

31.

a2.

53.58.

63.63.

79.*1.

128.

131.

140.

166.

166.229.245.

6185

4

7

0

4

10

89

81

6

9

6

2

572

42199125161

348

189

149

89

310308

309302

312255

277

283

274

324

341300296

146131121116

111

108

106

101

9796

9595

9292

48

48

48

48

4848.48

IPCIPCIPCIPCES 2IPCESIPDES 2EP 4ES 2EP-ES 2EP*EPES 4EPEP*ES 4EP 3EP-ES 4EP-ESIPD' ES

EP-ESEP 3ESEP 3EP*EP 4

24.9125.3426.0726.5429.2727.5330.6727.8431.8428.5032.4730.0834.9631.9832.5540.4133.4733.5542.2536.0036.2747.1943.6059.4044.5060.1045.3062.1048.6867.4048.4556.4158.75

1.952.383.113.586.314.577.714.888.885.549.517.121P.OO9.029.5917.4510.5110.5919.2913.0413.3124.2320.6436.442l'. 5437.1422.3439.1425.7244.4425.4933.4535.79

1.972.463.083.626.314.357.594.868.485.369.367.18

12.538.909.6916.9110.6310.6618.6113.2513.4623.4920.8ft36.4321.2837.1322.3438.9825.4^444.4025.4833.1635.05

-0.02-0.080.030.060.170.170.030.020.400.180.15

-0.06-0.530.02

-0.100.540.03

-0.020.77

-0.21-0.150.74

-0.240.010.260.010.000.160.280.04

-0.090.300.74

0000

2

0

0

2

00

02

02

0

0

0

0

000

DMAG

.0

.0

.0

.0

.4

.0

.0

.7

.0

.0

.0

.6

.0

.6

.0

.0

.0

.0

.0

.0

.0.

58

********************************************* DATE 781030 ** ORIGIN TIME 915: 6.46 UTC ** ** REGION SUMMERVILLE-MIDDLETON PLACE ** LATITUDE 33: 2.68 N ** LONGITUDE 80: 9.13 W ** DEPTH 6.78(km) ** Free Depth Solution ** ** MAG(D) 0.0 *********************************************



0.27 -27.00 0.38 -117.00 0.88 vertical


AIN

BCSMGS

HBFPPS

CCS

NHSSGS

VSCMTT

7

1016

2426

27

3737

85158

.0

.3

.4

.5

.7

.1

.1

.4

.9

.7

352

133176

240157

201

85296

258300

134

123111

104103

102

9898

8948

IPCESIPCIPCESEP 3EP 4ESEP-ESEPtEP 2ESEPEP 4ES 4

8.029.318.479.3211.5410.1411.5014.3411.0014.5412.7413.0517.6820.7132.5551.70

1.562.852.012.865.083.685.047.884.548.086.286.5911.2214.2526.0945.24

1.612.822.042.945.134.204.557.944.628.076.246.2910.9714.2424.8943.43

-0.050.03

-0.030.020.13

-0.020.49

-0.06-0.080.010.040.15

-0.010.021.001.46

0

00

00

0

00

00

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

59

********************************************* DATE 781030 ** ORIGIN TIME 915:13.00 UTC ** ** REGION SUMMERVILLE-MIDDLETON PLACE ** LATITUDE 33: 2.73 N ** LONGITUDE 80: 9.04 W ** DEPTH 7.34(km) ** Free Depth Solution ** ** MAG(D) 1.8 *********************************************



0.64 14.00 0.99 -76.00 1.90 vertical

STATION DIST AZM AIN--PHASE--TIME TOBS TCAL RES DMAG (.km) (deg)Cdeg) (sec) (sec) (sec) (sec)

AIN

BCSMGS

HBFPPS

CCS

NHSSGS

6

1016

2426

27

3737

.9

.3

.5

.6

.7

.3

.0

.5

351

134177

240157

201

85296

136

125113

105104

103

9999

IPCESIPCIPCESEP 3EP 4ES 4EP-ESEP +EP 2

14.5616.0415.0315.8418.0516.8317.5020.8517.5821.3419.3219.56

1.563.042.032.845.053.834.507.854.588.346.326.56

1.672.912.092.995.214.254.587.994.678.146.236.31

-0.110.13

-0.06-0.040.020.08

-0.08-0.14-0.090.200.090.10

1

00

20

0

11

.9

.0

.0

.0

.0

.0

.9

.7

60

********************************************* DATE 781030 ** ORIGIN TIME 916: 2.78 UTC ** ** REGION SUMMERVILLE-MIDDLETON PLACE ** LATITUDE 33: 2.59 N ** LONGITUDE 80: 9.23 W ** DEPTH 7.11(km) ** Free Depth Solution ** ** MAG(D) 0.0 *********************************************

Num.Qbs. Gap RMS Quality 9 96 0.07 A


0.53 -3.00 0.84 -93.00 1.59 vertical


AIN

BCSMGS

HBFPPS

CCSNHSSGS .

7

1016

2426

263737

.2

.3

.2

.3

.6

.9

.3

.3

353

132176

240156

20185

296

134

124113

105103

1039998

IPCESIPCIPCESEP 4EP 4ESEPEPtEP + 2

4.355.774.825.627.846.137.70

10.677.339.109.40

1.572.992.042.845.063.354.927.894.556.326.62

1.672.912.072.935.124.184.557.934.606.276.29

-0.100.08

-0.030.010.12

-0.330.37

-0.04-0.050.050.18

0

00

00

000

.0

.0

.0

.0

.0

.0

.0

.0ES 4 14.69 11.91 10.97 0.68

61

********************************************* DATE 781030 ** ORIGIN TIME 916:14.92 UTC ** ** REGION SUMMERVILLE-MIDDLETON PLACE ** LATITUDE 33: 2.32 N ** LONGITUDE 80: 9.02 W ** DEPTH 2.95(km) . ** Free Depth Solution ** ** MAG(D) 2.4 *********************************************



0.75 -27.00 1.18 -117.00 3.86 vertical

STATION DIST AZM AIN PHASE TIME TOBS TCAL RES DMAG (km) (deg)Cdeg) (sec) (sec) (sec) (sec)

AINBCS

MGS

HBFPPS

CCS

PBSNHSSGS

BOW

COM

OSB

VSCMTTJSC

79

15

2426

26

283737

59

64^

85

85159171

.7

.7

.7

.3

.0

.6

.7

.0

.9

.1

.1

.8

.9

.2

.7

351131

177

241157

202

33884

297

309

307

311

258300323

110106

100

9595

95

949292

89

89

87

874747

IPCIPDESIPCESEP 4EP 4ESIPDES 4EPIPEP 2ESEP 4ES 4EP 4ES 4EP 4ES 4EPEPEP 4

16.1916.6218.0817.5019.5917.9819.4022.5219.1922.2819.8620.9521.2726.5225.2032.1525.8934.5229.8238.9328.9140.8942.85

1.271.703.162.584.673.064.487.604.277.364.946.036.3511.6010.2817.2310.9719.6014.9024.0113.9925.9727.93

1.371.692.952.664.644.064.347.584.447.744.796.166.3111.019.8217.1410.6518.5814.2424.8514.2625.3726.89

-0.090.020.220.030.21

-0.500.140.03

-0.16-0.380.10

-0.13-0.100.340.36

-0.080.331.030.66

-0.84-0.270.401.05

2.0.

2.

2.0.

0.

0.2.2.

0.

0.

0.

0.0.0.

50

4

50

0

043

0

0

0

000

62




3.01 -123.00 6.51 -33.00 10.56 vertical


AINMGSHBFNHS

5.518.822.940.3

2416723188

162132126111

EPEP-EPEP

25.0026.1026.2129.18

3.00a. 104.217.18

3447

.00

.20

.71

.18

0.000.000.000.00

1111

.3

.0

.4

.4

63




0.68 -30.00 0.87 -120.00 2.26 vertical

STATION DIST AZM--A IN PHASE--TIME--TOBS TCAL RES--DMAG (km) .(deg)(deg) (sec) (sec) (sec) (sec)

»»>B«M*MIBM«i»MaBa»«BIM«a»«Ba»W«>M«M«BI«M>«<V««*««««<»«><l|ia>«W«««>»«W>BBII»«<

AIN 6.5 16 133 IPC 17.24 1.59 1.49 0.10 0.0ES 4 19.25 3.60 2.60 0.99

svs6CSMGS

HBFPBSCCS

PPS

SGSNHSBOWCOWWMS

ROWOSBMTTLHSJSC

PRM

111217

222626

. 28

3439566066

6682156168168

232

.0

.9

.5

.5

.5

.9

.5

.6

.8

.0

.9

.7

.9

.7

.0

.7

.9

.6

215127167

235343195

152

29787

310307309

301312300340324

299

119115109

104102101

101

9896939291

9189484848

48

IPCEP +IPCESIPCEP 4IPDES 2EP 4ES 2IPDIPDEP 2EPEP 2ES 4EPEP 4EP 4EPEP 4ES 4EP 4

17.18.18.20.18.23.20.23.20.23.21.22.25.25.26.35.26.29.41.42.42.62.49.

7904758289152850959170142964760657435050282986

2.142.393.105.173.247.504.637.855.308.266.056.499.649.9911.1119.4110.9213.7825.8526.8526.6346.6434.21

2.092.373.075.363.864.504.577.974.828.415.826.679.3210.1311.0819.3311.1213.7124.6226.1626.1845.6833.93

0.040.020.13

-0.01-0.132.950.06

-0.130.48

-0.160.07

-0.180.22

-0.140.180.33

-0.150.061.030.590.450.960.28

0.00.00.0

2.70.00.0

0.0

2.62.70.00.00.0

0.00.02.90.03.0

0.0

64


*REGION SUMMERVILLE-MIDDLETON PLACE * LATITUDE 32:59.35 N * LONGITUDE 80:13.62 W *

* DEPTH 10.43(km) ** Free Depth Solution ** ** MAG(D) 2,5 *********************************************



0.53 -51.00 1.04 39.00 1.16 vert ical

STATION--DIST AZM AIN-- PHASE--TIME--TOBS--TCAL--RES--DMAG (km) (deg)Cdeg) (sec) (sec) (sec) (sec)

svsMGS

BCSHBFCCS

PPS

PBS

SGS

BOM

COWROW

LHSPRM

3.

13.

14.15.19.

25.

32.

34.

57.

62.67.

173.232.

0

0

644

4

3

9

6

23

87

222

142

94246188

136

354

310

318

315308

342301

164

128

125123117

111

106

105

97

9695

4848

IPDESIPCESIPCIPDIPCES 4EPtES 4EPt2ES 4IPDES 4EP-ES 4EP-IPD£S 4EP 4EP 3

58.3059,6559.3061,2459.5659,330,152.551.054.032,485.472.786.406.4110.906.847.6715.7522.3030.50

1.713.062.714,652.972.743.565.964.467.445.898.886.199.819.8214.3110.2511.0819.1625.7133.91

1.793.132.754.802.953.073.636.334.527,895,609.776.0010.479.6516.8310.3911.2219.5826.3233.47

-0.08-0.060.060.030.020.17

-0.06-0.37-0,06-0,440.25

-0.970.04

-0.920.08

-2.70-0.13-0.09-0.33-0.700.44

0

0

020

0

0

2

2

22

00

.0

,0

,0.6.0

.0

.0

.5

.4

.5

.3

.0

.0

65

********************************************* DATE 791005 ** ORIGIN TIME 2305:54. 74 UTC ** ** REGION ADAMS RUN ** LATITUDE 32:46.91 N ** LONGITUDE 80:16.85 W ** DEPTH 13.06(km) ** Free Depth Solution ** ** MAG(D) 2.1 *********************************************



1.67 -59.00 2.87 31.00 2.70 vertical

STATION--DIST--AZM--AIN--PHASE--TIME--TOBS--TCAL--RES--DMAG (km) (deg)(deg) (sec) (sec) (sec) (sec)

MGSHBF-

SVSSGS

PBS

BOMCOM

ROMWMS

OSB

JSC

LHS

1819

2150

55

7377

8083

99

189

194

.3

.1

.0

.5

.2

.8

.5

.5

.3

.8

.3

.5

46332

8335

2

333330

323329

328

331

345

124123

121101

100

9695

9494

91

49

49.

IPIPDESIPIPCES 4EP 4ESEPEPESIPCEP 4ESEP 4ES 4EPES 4EP

58.4058.2160.7058.603.33

10.944.3211.157.157.55

16.958.008.1418.9010.7824.2023.2047.70.24.10

3,663.475.963.868.5916.209.58

16.4112.4112.8122.2113.2613.4024.1616.0429.4628.4652.9629.36

3.703.806.634.068.5614.949.3116.2512.3112.9022.5013.3913.8524.1616.5228.8227.9148.7128.55

0.060.170.20

-0.20-0.121.000.220.070.00

-0.09-0.29-0.08-0.300.26

-0.480.640.554.250.71

0.2.

0.2.

0.

0.0.

2.0.

0.

0.

0.

02

01

0

00

10

0

0

0

66




0.91 -116.00 1.17 -26.00 2.46 vertical


MGSHBF

AINSGS

BOW

COW

418

2043

66

70

.9

.1

.9

.0

.0

.4"

121275

6315

320

317

155119

116101

95

94

EPIPDES 4EPEPES 4EPESEPES

30.5031.6033.2032.5036.0040.9039.8048.0040.4049.20

1.852.954.553.857.3512.2511.1519.3511.7520.55

1.933.466.033.877.2912.7311.0119.2111.7320.47

0.020.00

-0.61-0.01-0.09-0.740.04

-0.040.020.09

11

11

0

0

.5

.7

.6

.6

.0

.0

67

******************** DATE 791207 * ORIGIN TIME 543:34.97 UTC *

*REGION SUMMERVILLE-MIDDLETON PLACE * LATITUDE 33: 0.40 N *LONGITUDE 80:10.06 ri DEPTH 4.59(km)

Free Depth Solution

MAG(D) 2.9

Num.Obs . 24

Gap 105

RMS 0.12

Qua!i ty A


0.38 -23.00 0.65 -113.00 1.41 vertical


SVS

BCS

AIN

MGS

HBF

CCS

PPS

PBS

SGS

BOM

COWROW

WMS

VRNOSB

MTTJSC

LHS

PRM

8

9

11

12

21

22

23

31

38

60

6570

70

7287

159173

173

236

.7

.4

.1

.4

.3

.7

.6

.5

.2

.2

.0

.7

.8

.4

.0

.6

.7

.8

.4

241

108

2

168

247

201

150

343

303

313

310304

311

273314

301324

340

300

117

115

112

110

101

100

100

96

94

91

9089

89

8988

4747

47

47

IPCES 4IPDESIPDESIPCESIPD2ES 4IPDES 4EP 4ESEP 3ESIPDESEPtES 4EPtEPtES 4EP 4ESIPCEPESEPtEPESEP 4ES 4EP 4

36.5537.7?36.6638.1236.8238.4937.0038.8937.7339.8138.8241.4239.2041.9640.4844.2241.3546.6445.1553.1045.7746.6855.1046.7455. ?546.85a9.5060.350.401.80

22.201.10

21.689.60

1.582.751.693.151.853.52?.033.922.764.843.856.454.236.995.519.256.381U6710.1818.1310.8011.7120.1311.7720.2811.8814.5325.3825.4326.8347.2326.1346.7134.63

1 .632.841.743.032.003.492.203.833.616.303.846.693.986.945.289.216.3811.1410.0017.4510.8011.7420.4811.7620.5212.0214.4325.1725.2426.9447.0226.9647.0434.57

-0.04-0.09-0.040.12

-0.150.03

-0.060.26

-0.35-0.590.02

-0.240.250.050.18

-0.05-0.150.270.080.500.000.03

-0.260.16'0.02-0.140.110.21

-0.01-0.110.22

-0.92-O.bO0.06

0

0

0

0

2

0

0

0

2

0

00

0

20

33

0

0

.0

.0

.0

.0

.7

.0

.0

.0

.7

.0

.0

.0

.0

.2

.0

.1

.1

.0

.0

68




3.46 -66.00 7.14 24.00 7.94 vertical

STATION--DIST AZM--AIN--PHASE--TIME--TOBS TCAL--RES--DMAG (km) (degHdeg) (sec) (sec) (sec) (sec)

WMS

COW

BOW

ROW

8.

11.

11.

17.

8

1

3

1

231

196

169

224

128

121

120

109

EPESEPESEPES 4EP

59.1060.7059.3061.4059.5661.900.60

2.283.882.484.582.745.083.78

1.983.342.293.882.333.943.21

0.000.03

-0.210.030.110.630.07

0

1

0

1

.0

.1

.0

.1ES 4 4.10 7.28 5.43 1.00

69

******************************************** DATE 800622 * ORIGIN TIME 2033: 6.16 UTC *

*REGION SUMMERVILLE-MIDOLETON PLACE * LATITUDE 33: 0.7a N * LONGITUDE 80: 9.51 W * DEPTH 0.24(km) . *

Fixed Depth Solution **

MAG(D) 2.1 *********************************************



0.82 -42.00 1.03 -132.00 8.53 vertical

STATION--DIST AZM--AIN--PHASE--TIME--TOBS--TCAL--RES--DMAG (km) (degMdeg) (sec) (sec) (sec) (sec)

BCS

SVS

AIN

MGS

HBF

SGSBOW

COW

ROWOSB

LHS

JSC

8

9

10

12

22

3860

65

7187

173

173

.8

.7

.5

.9

.3

.6

.6

.0

.1

.2

.5

.7

113

240

358

173

247

301312

309

303313

340

324

91

91

91

90

89

8886

86

8685

47

47

IPDES 2IPCES 2IPCES 4IPCES 2IPDES 4IPDIPDES 2EP 4ES 4EP 2EP 2ES 4EP 4ES 4EP 3

7.608.457.828.927.828.858.3510.029.0511.1012.9816.4324.1616.4724.3517.9320.4932.7534.8355.4734.00

1.442.291.662.761.662.692.193.862.894.946.8210.2718.0010.3118.1911.7714.3326.5928.6749.3127.84

1.472.561.622.831.763.062.153.753.726.496.4310.0917.6110.8218.8911.8314.5125.3127.4147.8327.43

-0.03-0.280.04

-0.07-0.10-0.380.140.28

-0.33-0.680.230.080.21

-0.52-0.70-0.02-0.181.271.161.300.40

0

0

0

0

2

20

1

00

0

0

.0

.0

.0

.0

.2

.2

.0

.9

.0

.0

.0

.0ES 2 53.87 47.71 47.87 -0.16

70

********************************************* DATE 800622 ** ORIGIN TIME 2335:26.52 UTC ** ** REGION SUMMERVILLE-MIDDLETON PLACE ** LATITUDE 33: 0.90 N ** LONGITUDE 80: 9.49 W ** DEPTH 0.26(km) . ** Fixed Depth Solution ** ** MAG(D) 1.6 *********************************************



0.93 -32.00 1.16 -122.00 9.86 vertical


BCS

SVS

AIN

MGS

HBF

SGSBOMJSC

8

9

10

13

22

3860

173

.9

.9

.2

.2

.5

.5

.4

.4

115

239

358

173

246

301312324

91

91

91

90

89

888647

IPDES 2IPCES 2IPCES 4IPCESIPDES 4EPEP 2EP 3ES 2

27.9329.0028.1529.4528.1629.1128.7130.3729.4531.6633.3536.8553.7074.30

1.412.481.632.931.642.592.193.852.935.146.8310.3327.1847.78

1.482.591.652.881.702.972.203.843.746.536.4110.0627.4047.82

-0.08-0.11-0.020.05

-0.07-0.390.090.19

-0.32-0.520.270.17

-0.23-0.04

0

0

0

0

1

100

.0

.0

.0

.0

.7

.5

.0

.0

71




0.38 -61.00 0.95 29.00 0.89 vertical

STATION DIST--AZM-- A IN PHASE--T IME TOBS--TCAL--RES DMAG (km) (deg)Cdeg) (sec) (sec) (sec) (sec)

COM

BOWWMS

ROW

OSB

SGSPBS

MTT

JSC

PRM

2.

2.8.

11.

24.

25.39.

98.

113.

175.

6

82

4

4

67

4

4

0

271

99309

262

319

144106

295

331

296

128

125102

97

89

8883

67

64

52

IPDESIPDIPCESIPCES 4IPCESIPCEP 4ESEPESEP-3ES 2EP 3

20.8521.5120.5521.6322.9722.2723.6124.2827.2424.5024.8531.8536.6248.3538.6752.0048.40

1.041.700.741.823.162.463.804.477.434.695.0412.0416.8128.5418.8632.1928.59

0.580.980.621.492.522.053.474.327.304.536.9811.8116.8628.5119.2632.5628.38

0.060.04

-0.170.030.14

-0.09-0.510.05

-0.040.01

-1.940.23

-0.050.03

-0.39-0.370.22

0

11

1

1

00

0

0

0

.0

.6

.6

.7

.5

.0

.0

.0

.0

.0

72

Other South Carolina Events January 1978-July 1980

73

Tab

le

5.

- O

ther

S

ou

th C

aroli

na

even

ts

Jan

uar

y

1978

-

July

19

80

C»t«1tg

Origin ti

»t

MC6

loot"

yr

MO.

0 h

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

I 19

782

1978

3 19

784

1978

5 1978

6 19

787

1978

6 19

789

1978

10 19

7811 1978

12 19

7811

19

7814 |9

7815 19

7816 19

7817

19

7818 1978

19 19

7820 19

7821 |9

7822 19

7823 19

7824

19

7825 19

7826

19

7827 1978

28 19

7829 19

7830

1978

31 1978

12 19

7811 1978

14 1978

15 19

7836 1978

37 19

7838

1978

39 19

78

40 19

78

1 30 17

2 8

202

14 17

3 2

223

8 22

3 6

223

17 22

3 27

20

3 29 22

5 2

15

16 16

6 5

216

11

56

12

67

9 00

797

B 4

1610

4 21

10 10 13

10 10

16

10 12 21

10 13 21

10 24 22

11

2 18

11

2 22

11

6 17

11

6 22

11

7 17

11

13 17

11

13 20

11

14 20

11

14 22

11 15 16

11

15 20

11

17 18

11 21

1712

7

1612 14 21

12 15

20

12 21

17

(UTC

)... ..

| in

9 6.780E

35 19.550E

6 41.080E

3 26.950E

15 50.400E

IS 57

.570

15 29

.090

56 44.670E

10 32.810

46 11

.640

6 11.860E

37 44.560E

28 20.470

13 16

.050

26

3.610

3 34.420

21 30.3IOE

36 36

.680

58 58.820E

28 18

.050

31 38

.380

28 31.250E

1 25

.260

5 0.

970E

11 I4.260E

6 I4.500E

20 1«

.4SO

E1

2.570E

2 4fr.

580E

4 51.100

2 49.710

15 25.010

3 34

.850

E4

11.2

9011

9.

920E

2 1.

840

9 11

.010

21 22.880E

32

0.43

0 32

9.92

0

North

tttud*

(dtg)

34.931

34.0

6234.794

33.5

1934.200

33.9

7534

.669

34.7

7633

.553

34.1

6334

.953

33.5

3B34.041

14.041

13.6

5311.492

11.9

8711.570

14.8

8211

.979

31.8

1234

.313

34.401

34.837

34.2

4633

.980

14.068

13.9

7814.951

14.1

7511.958

14.1

8814

.905

14.2

5111

.981

33.5

4434.886

33.9

8434

.003

34.793

E**t

Foc»

\ lonQltud* d*

pth

(o«g

) Ik

m)

-81.781

B2.134

81.756

82.612

82.098

81.323

-82.160

-82.595

82.552

82.737

81.811

82.590

81.644

82.458

82.

611

-82.792

81.049

82.545

-81.761

81.034

82.441

82.

151

82.842

81.742

82.108

81.021

82.056

81.024

-81.791

81.584

-82.148

-82.098

-81.776

-81.600

-81.018

-82.596

-81.774

-81.018

-80.721

-B2.660

11.1

10.9

6.4

4.9

5.0

5.0

12.6 0.6

1.5

16.3

10.7

21.2 1.5

1.5

8.6

0.1

1.9

1.7

17.8

12.5 8.1

3.5

1.2

0.9

6.1

4.5

4.9

1.4

0.0

5.0

11.84.0

12.8 5.0

4.4

3.5

11.1 1.9

24.1

Error

M

...

2.5

2.5

2.1

2.1

2.1

.

2.5

2.4

2.9

2.6

2.6

2.5

2.5

2.6

2.8

2.1

2.2

2.4

2.0

2.1

2.1

2.2

2.2

2.0

1.9

1.9

1.9

...

2.2

1.8

2.0

2.2

2.1

1.8

2.4

2.1

1.8

1.9

1

1 ip«ot d

>

»(k»)

Tr f\

b(

k«)

Tr PI

c(

k«>

Tr PI

X ( )

ob 6*p

48.2

149

15.7 10

12.4

254

12.2 238

3.9

762.2

181.1

734.8

51

4.1

119

6.8

286

1.1

262

4.0 141

2.1

227

1.8

255

8.1

219

5.1

142

1.9

116

2.5

109

0.8

266

2.0

181

1.6

114

2.3

255

4.4

361.7

96

1.7

700.9 150

2.0

810.6 170

4.2

257

6.6

287

16.9 216

2.1

252

7.3

262

8.2

292

0.9

559

1.8

135

1.1

260

0.1

115

17.9

2

6 5 0 0 1 0 1 A 7 1 1 100 0 5 1 OE 0 11 2160 12 121 0 1 1 0 0

190 1 0 0 7 1 0 0 5

13.7 251

42

19.1

86 47

68

0.25.

5 270

17.8

10

5

>99.9

215

82 68 1.81

7 15

39.8

144

1 >9

9.9

161

87 68

0.

18

5 250

5.4

148

2 >99.9

527

88 68

0.

19

4 10

620.3 166

1 >9

9.9

101

88 68 ..

..

1 201

9.6

128

4 ..

...

108

86 68

....

3 18

917.2 16

4 1

»99.

9 125

86 68 ..

..

4 269

1*.5 120

21

1.0

163

67 68 0.

62 11

28

28.0

27 17

28.1

210

71 68 0.

12

7 28

614.7 195

29

4.5

18 60 68

....

4 30

711.6 152

3 »99.9

151

86 68

0.

12

5 272

7.3

215

11

80.1

11 75 68 ..

..

4 285

2.9

117

0 ..

...

90 89 68 O.

Ol

4 21

65.

1 145

0 >9

9.9

90 90 68 0.

04

5 16

14.2

128

7 >9

9.9

144

81 68 0.

17

5 30

225.5 212

12 >9

9.9

47 77 68 0.

05

4 29

01.9

246

0 >9

9.9

270

89 68

0.

17

6 168

7.2

19 25

46.2 21

9 65 68 0.

16

6 265

1.8

4 16

1.6

161

51 68

0.

08

7 25

91.2

271

2 11

.8

45 87 68 O.

Ol

5 11

95.0

209

17

13.4 144

66 68 0.

19

5 26

67.5

345

0 .....

90 90

68 O.

Ol

4 221

24.6

30

1 20

2.6

155

66 68

0.

16

6 297

19.2

1

19

3.3

216

67 68 0.

63

7 284

24.5

340

14 >9

9.9

165

75 68 0.

24

S 197

1.1

260

0 >99.9 27

0 90 68 0.

17

8 14

225

.8 171

12 >9

9.9

147

77 68 0.

10

7 192

0.9

80

1 4.8

105

88 68 0.

07

7 141

20.8

147

2 97

.1 166

«« 6A

0.28

4 27

227.6

17

2 >99.9

197

88 68 0.

78

6 214

>99.9 140 IS

4.2 122 48 68 0.44

6 210

44.4 142

6 >99.9 161 84 68 0.22

6 187

16.4 152

7 >99.9

|6l

82 68 0.

46

6 26

114.1

22

2 >99.9

202

AS 68 0.

65

6 241

2.4

249

0 >99.9

270

89 68 O.

l7

7 119

4.1

228

29

8.7

32 60 68 O.

|8

8 26

417

.1 150

5 >99.9

158

84 68 0.

05

4 25

90.6

245

0 59.6 270

89 68 0.

21

7 14

244

.6 272

40

72.7

92

50 68 2.

02

7 201

42.1 122

24

1.1

128

65 68 0.

30

7 298

Hyoo

DM 0

uth

<1 0

....

58 0

....

97 0

....

.. D

....

78 0

....

71 D

....

91 0

....

.. D

....

.. 0

....

.. 0

....

.. 0

....

92 0

....

66 D

....

83 0

....

.. 0

....

.. 0

....

59 D

....

87 D

....

.. B

....

59 D

....

.. 0

....

78 0

....

.. 0

....

.. o

....

78 0

....

59 D

....

77 0

....

59 B

....

.. D

....

98 D

....

67 D

....

78 0

....

.. 0

....

.. D

....

59 D

....

92 C

....

.. D

....

58 0

....

58 D

....

.. D

....

Tab

le

5.

- conti

nued

Catalog

Origin H«a (U

TC)

SEC

Incai

yr

no

d h

«in

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

41 1979

42 1979

43 1979

4* 1979

45 1979

46 1979

47 1979

48 1979

49 1979

50 1979

51 1979

52 1979

53 1979

5« 1979

55 1979

56 1979

57 1979

56 1979

59 1979

60 1979

61 1979

62 1979

63 1979

64 1979

65 1979

66 1979

67 1979

68 1979

69 1979

70 1979

71 1979

72 1979

73 1979

74 1979

75 1979

76 1979

77 1979

76 1979

79 1979

60 1979

81 1979

82 1979

63 1979

84 1979

85 i960

4 19 53

5 20

19

5 22

44

6 17

516 18

28

19

8 55

22 17

1122 22 35

2 26 21 50

2 27

22 16

2 27 22 43

16)4

2 14

19 42

2 16 14

37

2 20 23 20

2 24

9 31

3 14

16 54

3 19 19 23

3 21

22 35

3 22

1 17

4 ' 3

20

174

6 22

16

4 16 19 16

4 22

2 4

4 22 16 34

4 24

9 49

5 1

18 24

5 4

12 13

5 7

10 00

5 8

I)

195

19 16

96

5 9

17611 1621

6 10

1 35

7 17

20

13

8 13

5 19

6 26

1 11

10

3 3

4310

8 23 20

10 14

8 23

10

15 23

54

11 13

22 11

12

7 20 20

12

10 22 10

1 2

19 39

53.560E

«2.790

5.040

15.95PE

31.490

35.930

29.690

51.220

16.940

43.360

2.340

33.540

57. HOE

8.460

44.630

42.600

40.550

22.410

16.450

45.990

17.070

12.960E

1.960

57.570

5.610

56. 100

24.430E

9.120

10.500

50.960

10.640

43.920E

4.320

0.660E

7.350

25.190

46.740

9.600

9.610

57.040

51.460E

0.310E

56. OBOE

0.270

30.000

North

at \

tud«

(dag

)

33.964

34.253

34.014

34.675

33.346

14.691

33.979

34.369

34.733

34.060

33.532

34.394

34.541

34.365

34.369

34.288

34.100

34.721

34.030

34.417

34.203

34.142

33.505

34.397

34.794

34.313

33.9U

34.347

34.349

34.412

34.310

34.299

34.126

34.355

34.743

33.901

34.650

34.393

34.323

34.307

34.111

34.017

34.782

34.126

34.063

Eatt

Focal

longitude dapth

(d*g)

(k*>

-61.065

-62.637

-62.567

-01.772

-62.142

-82.871

-61.036

-83.094

-82.557

-62.621

-82.602

-61.307

-61.261

-61.353

-61.346

-61.262

-62.812

-82.579

-62.566

-61.293

-61.146

-62.016

-62.011

-61.295

-61.000

-61.289

-62.661

-61.946

-61.120

-61.363

-63.006

-61.310

-61.119

-61.326

-62.561

-82.535

-82.914

-61.310

-61.36)

-81.346

-61.325

-82.063

-62.621

-82.092

-62.616

3.9

26.9

0.1

10.0

6.0

0.3

5.0

5.6

0.1

1.5

3.3

4.0

5.0

1.2

1.7

7.9

3.6

6.1

0.5

0.2

10.93.6

17.3 1.3

30.0

5.4

9.6

. 4.

73.9

1.3

25.3

4.4

4.0

1.3

0.1

23.3

0.3

1.4

0.0

3.2

1.2

3.7

1.6

16.6 1.3

Error

H 1.7

2.4

2.2

2.1

2.2

3.4

1.7

2.0

2.3

1.6

1.7

2.3

1.6

3.4

2.4

2.1

2.3

2.2

2.1

2.0

1.5

...

2.1

2.1.

2.2

1.6

1.6

2.7

1.7

2.4

2.1

2.2

1.6

2.3

2.5

4.1

4.2

2.4

2.9

2.9

2.4

2.1

...

...

2.1

a(k«)

Tr

0.4 320

90.5 139

6.6

202.

1 263

3.5

301

4.2

501.

0 256

>99.9 227

0.7

324

64.6 291

2.3 12

74.1

272

2.3

255

1.3

262

2.0 204

2.3 214

3.0

303

5.3

557.9 174

5.9 232

2.9 139

1.5

257

3.2 10

95.0 326

13.0 19

12.

1 249

6.3

051.

7 260

1.7

254

0.6 257

17.1 21

13.

8 252

3.1

922.6

6215.7 320

4.1

1612.0

273.0

245

2.0

762.6 255

2.1

264

1.7

263

7.1

6347.4 |66

3.2

36

1 1

ipaotd a>a*

») b(k«)

Tr PI cU«)

Tr ?)

X (

) ob Cap

0 6 6 1 1150

26 217 2 0 OE 6 13 9 0 2 10 24 170

161 3 7 130 0 1 7 7 1 423 256 0 4

115 0 9 214

0.6

236

0 70.1 270 69 66

0.26

6 16

367.7 232 29

15.6

36 60

66

1.66

7 272

1.0

114 36

25.0 262 53 66

0.25

6 196

5.6 353

5 >99.9 16

1 64 66 0.37

7 256

6.5

211

3 17.3

50 86

66

0.43

9 257

15.6

313

22

1.6

172

62 66

0.27

9 297

1.4 166

I 62.4 345 66 66 0.14

7 139

57.9 341

36

47.3 111

39 66 2.75

7 12

42.

7 64

24

1.2

196

57 66 0.12

7 276

20.1

25

26

>99.9 |0

0 62 66

1.16

6 293

4.4

36 21

40.9 222 66

6*

0.12

6 267

6.1

2 0

>99.9

9Q 90 66 0.63 10 167

3.6 345

4 >99.9 164 06 60 0.54

5 216

2.1

172

6 5.1

37 0|

60

0.30 14

16

45.6 16

9 21

23.5

44 64 60 0.30

7 255

5.0 330

35

6.6 131

53 60 O.l7

6 16

76.9

33

1 >99.9 213 00

60

0.34

7 33

029.2 32

4 27

50.5 14

9 62 60

0.17

5 279

1.0

75 40

29.1 275 40

60

0.12

5 16

214.6 342 36

10.1 11

7 42 66 0.44

6 191

7.6 243 37

3U.1

29 47 66

0.29

6 204

47.5 34

7 0

>99.9

90 90

66

0.54

5 16

07.1 207

25

11.6 14

7 56 66

0.01

5 272

3.3

56

7 11.9 228

62 66

0.17

6 16

620.2

99 11

2.4 265 56 66 0.

41

5 275

4.0 141 29

9.7 146

59 66 0.17

5 172

5.1

165

38 >99.9 34

0 49 66

0.34

5 32

23.8

350

0 >99.9

9Q 90

68

0.11 10

201

4.1 344

7 >99.9 161 63 66 0.26

5 1*0

19.1 34

7 23

57.1 164

66 66

0.79

6 19

111

. i

117

26

1.7

111 60

60

0.54

5 12

28.

4 14

4 17

21.1 140

71 66

0.26

6 17

04.

1 162

1 >99.9 31

7 80

66

0.20

5 191

4.0 312

4 11.0 19

6 04

66 0.20

6 10

27.3 212

16

1.5

76 45

68

0.22

5 279

2.1

266 17

0.9

114

«2 60

0.00

7 220

19.0 296 12

>99.9 151

75 60 0.05

4 10

14.0 115 15

16.1

15

4 75

68

0.27

7 160

2.7

160

10

5.0 14

0 59

60

0.

21

0 17

76.0 349 21

14.4 14]

64 60 0.22

6 17

44.1

356 20

50.6 16

0 69

60 0.50

5 177

20.9 17

1 1

>99.9 152 00 60 0.05

5 202

19.1 331

9 40.3 19

6 77

68 0.10

6 264

1.3

77

12

4.9 267

77 66

0.16

7 17

917

.6 301

20

9.9 15

9 65

66

1.34

5 264

Hyoo

DM 0

auth

56 0

....

.. 0

....

91 0

....

.. 0

....

.. o

....

.. 0

....

59 0

....

. .

0 ....

.. c

....

97 0

....

93 0

....

77 0

....

.. 0

....

73 C

....

.. 0

....

66 C

....

.. 0

....

.. 0

....

92 0

....

60 0 ....

.. 0

....

.. o

....

.. D

....

. o

....

.. 0

....

70 C

....

.. 0

....

69 0

....

.. o

....

99 0

....

.. D

....

60 0

....

63 0

....

.. 0

....

..

0 ....

65 8

....

.. o

....

77 0

....

66 B

....

67 0

....

70 D

....

60 0

....

.. o

....

79 0

....

96 0

....

Tab

le

5.

- co

nti

nu

ed

Catalog

Origin tin*

REC

Ir>o

a»

yr

no

a h

III

III

III

III

III

III

III

III

III

III

' III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

III

111

III

III

III

III

III

III

III

III

III

III

III

III

III

III

66 J960

1 7

2197

I9

60

1 9

2166

19

66

I 17 21

69 i9

60

1 25 17

90 19

80

2 4

2291 I960

2 6

2092 I960

2 13

17

93 i960

2 16 20

94 I960

2 29

21

95 I960

3 6

1696 I960

3 6

2297 i960

3 7

1796 1960

3 10

22

99 I960

3 15 20

100

1980

3 |6 23

101

i960

3 20 17

102

i960

3 22

18

103

I960

3 n 17

104

I960

105

I960

106

i960

107

I960

108

I960

109

I960

110

1960

111

I960

112

i960

113

I960

114

I960

115

I960

116

I960

117

i960

116

I960

119 I960

120

I960

7 22

9 20

18 22

23 20

24

6 2

136

166

219

1529 17

29 19

4 19

5 15

16 20

19 15

25 20

2 16

121

I960 776

122

I960

7 11

19

123

1980

7 21 20

124

1980

7 22 20

125

1980

7

29

1126

i960

6 22

20

127

I960

6 2*

19

(UTC)

In

44 56.840

36 52.420E

8 35.720C

13 53.910E

6 57.070E

44

2.710

3 14.570

47 39.640

16 33.450

40 46.440

16

7.690

32

5.570

11 30.620

40

4.100E

7 20.580C

22 13.260

36 54.760

23 46.700

14 33.570

47 23.970

15 59.670E

48 55.250

16 56.570

41 31.540

24 32.020

13 22.120

41 40.660

43 43.600

51

2.320

53

2.060

50 43.130E

44

3.310

30 42.S90E

00 26.730

16 57.730

21 46.330

52 43.290

57 34.720

17 32.660

10 22.660

6 22.290

43 20.770

North

Ea»t

at

ltud

a longltud*

(d»g)

(dag)

34.0

2933.661

34.5

6034.775

33.977

34.0

1733

.854

34.021

33.1

4334.029

33.6

7233

.636

34.340

33.6

9834

.03*

'

34.031

34.0

2134.030

34.3

2234

.646

34.014

34.024

34.346

34.029

38.020

34.406

35.015

34.050

34.026

34.096

34.758

34.026

34.540

34.026

34.094

38.046

34.021

34.039

33.650

34.351

34.022

34.102

62.573

62.062

62.257

82.591

62.056

62.660

-82.519

62.740

62.

611

62.630

62.036

62.226

-61.326

82.605

82.061

-62.

571

-82.646

-62.670

82.144

-79.941

-62.056

-82.591

-61.385

-62.611

-62.640

-82.161

-81.906

-62.642

-62.646

-62.666

-82.560

-62.564

-61.276

-82.637

-82.913

-62.524

-82.766

-62.706

-62.525

-61.364

-62.590

-82.626

dtpth

1.4

3.0

0.6

0.7

5.0

5.0

12.1 1.9

10.6

6.3

16.6

6.3

4.1

4.9

3.5

1.3

*

2.9

4.8

> »» >

4.4

3.4

3.0

5.0

3.7

24.7 5.1

7.2

6.9

1.0

1.4

5.0

0.0

4.4

1.5

0.1

4.4

1.3

0.2

1.3

M 2.0

2.0

2.0

2.0

t

2.1

...

2.0

2.2

1.9

2.4

1.9

2.3

2.0

l.S

1.4

2.1

1.9

1.9

2.6

1.6

2.0

2.0

2.0

2.0

...

1.9

1.9

1.7

1.5

2.0

i.e

2.4

1.9

1.7

2.0

2.1

3.2

1.6

1.8

Error lltptold a»t«

a ._.

Un)

Tr PI

b(kn)

Tr P) c(k»)

Tr PI

X

(t)

ob

57.4 381

5 1.

9 73 15

6.6 234 74

66 0.46

1.9

65

3 11.5 35

3 20

34.2 16

3 69 66 0.67

2.7

281

0 19.0 33

1 0

»99.9

90 89 66 0.57

21.2 319 16

8.9 2)4 39

4.2

69 45 66 0.35

2.3

64

I 16.3 175

6 ..

...

345 *3

66

..

....... 270 12

>99.9 176

|7

10.3

34 66 66 0.25

3.2

113

19

5.5 209 19 »99.9 34

1 62 66 0.14

14.4

16 16

7.1

271

36

16.6 12

6 88 66

0.22

31.6

29

| 43

.1 296

32

8.3 12

1 57

66 0.84

40.8 18

2 9

9.3

69 21

5.0 293 67 66 0.20

3.0

101

6 7.5 193

14

3B.8 349

74 66

1. 12

6.6 207

9 3.3

1|5

11

12.3 335 75

66 1.66

1.5

256

1 4.2 346

10 »99.9 16

0 79 66 0.23

21.9 12

3 1

65.6 214

10 >99.9

27 79 66 1.90

1.0

260

0 13.6 35

0 0

....

. 90

9Q 68

0.13

41.1

15

9 1

1.0

69

4 6.5 263 65 68 0.26

42.3 218

14

|9.7

31

1 15 >99.9

66 69 66

0.24

11.9 273 13

>99.9 17

6 24

5.6

30 62

68 0.21

2.2'

70

1 6.6 160

| »99.9 295 66 66 0.19

>99.9 13

5 7

>99.9

43 22

4.5 24

1 66

66

....

2.0

84

1 25.6 174

5 »99.9 38

3 64

68

0.36

72.2 17

1 4

11.6 263 32

2.4

74 57 68 0.44

11.0

63

1 >99.9 17

3 16

2.6

350

71 66 0.07

>99.9 160

16 >99.9 275

16

7.5

47 67 68 0.11

2.0 254

0 9.2 344

0 >99.9

90 90 66

0.36

6.0

253

0 2^.2 3*3

0 >99.9

90 69

66 0.96

6.6 279

6 13.7

11 14 >99.9 16

6 74 66 0.20

7.4

262

14

93.6 16

6 16

H .

1 32

68

66

0.31

7.8

281

13

3.6

18 27

>99.9 167

59 66

0.72

26.5 310 27

7.1

205 29

3.8

76 46

66

0.05

>99.9 349

7 3.1

61

10

10.0 225 77

66

0.34

2.3 255

OE

3.8 34

5 4

>99.9 16

4 66 66 0.35

9.1

355

3 21.1 268

27

2.1

9i 62 66

0.25

6.7

289

3 11.6

|9

4 >99.9 16

2 85

68

0.30

6.3

342

0 0.2

72

3 0.

6 252 67

68

0.17

21.6 35

7 1

52.5 26

7 28

5.7

89 61 66

0.47

12.9

43

0

7.2 13

3 1 >99.9 313

89 66

0.6?

3.7

359

0 2.1

269

6 10.4

A9 64

66

0.35

>99.9 321

10

50.9

56 24

11.2 211

63 66 3.56

6.6

24 12

26.6 118

19

34.8 264

67 66

0.55

5 5 4 7 3 3 5 6 5 6 5 5 6 7 6 6 4 4 4 5 5 5 10 4 3 5 4 5 5 5 4 6 5 7 5 6 7 7 6 9 7 6

Cap

163

231

247

2*2

211

352

274

326

321

344

231

266

179

276

196

1*9

386

344

236

353

203

350

161

334

351

236

276

343

343

305

296

189

216

330

336

165

326

322

270

162

293

265

hypo

OH 0

auth

.. D

....

87 D

....

97 0

....

.. D

....

61 0

....

.. o

....

.. o

....

.. o

....

.. o

....

.. o

....

64 0

....

.. D

....

.. 0

....

90 0

....

79 0

....

.. 0

....

.. 0

....

.. o

....

82 D

....

.. D

....

79 0

....

.. 0

....

71 0

....

.. 0

....

.. 0

....

66 0

....

.. 0

....

.. o

....

.. o

....

.. o

....

.. 0

....

.. o

..

.... o

....

. D

....

. o

....

. c

....

. o

....

. o

....

63 0

....

71 0

....

.. o

....

.. o

....

Bl'U

Figu

re 3. South Ca

roli

na ev

ents

from January

1978

th

roug

h Ju

ly 1980 ex

clus

ive

of Charleston Se

ismi

c Zo

ne earthquakes.

Area

s in

dica

ted

by an

ar

row

are

regi

ons

of known

quarry ac

tivi

ty.

Acknowledgments

The assistance and cooperation of the Department of Geology, University

of South Carolina, especially Prof. Pradeep Talwanl and his graduate students,

and the Department of Sciences, Baptist College at Charleston, especially

Prof. Joyce Bagwell, is gratefully acknowledged. The technical support from

Lyle Benson, Robert Collins, and Mike Judson is particularly appreciated.

Suggestions from David Carver, Richard Dart, and William Gawthrop are

especially thanked. Financial support for the South Carolina Seismic Program

is provided by the Nuclear Regulatory Commission, Office of Nuclear Regulatory

Research, under contract number (49-25)-1000.

78

References

Araick, David, 1979, Crustal structure studies in South Carolina Coastal Plain,

M.S. thesis, University of South Carolina, Columbia, South Carolina,

81 p.

Bonini, W. E., and Woollard, G. P., 1960, Subsurface geology of North

Carolina-South Carolina coastal plain from seismic data: American

Association of Petroleum Geologists Bulletin, v. 44, 298-315.

Carver, David, Turner, Lana, and Tarr, A. C., 1977, South Carolina

seismological data report May 1974-June 1975: U.S. Geological Survey

Open-File Report 77-429, 66 p.

Carver, David, Wharton, K. C., and Cook, R. D., 1978, South Carolina seismic

program seismological data report July 1975- June 1977: U.S. Geological

Survey Open-File Report 78-487, 121 p.

Dart, Richard L., 1980, Suggestions on the analysis of 16-mm seismic data from

local networks: U.S. Geological Survey Open-File Report 80-990, 26 p.

Gawthrop, William H., 1980, VELINV: A computer program for determining

velocity structure for a local network using inversion techniques Green

Mountain Geophysics, Flagstaff Star Route, Boulder, Colorado, 10 p.

Lahr, I. C., 1979, HYPOELLIPSE: A computer program for determining local

earthquake hypocentral parameters, magnitude, and first-motion pattern:

.U.S. Geological Survey Open-File Report 79-431, 57 p.

Lee, W. H. K., Bennett, R. E., and Meagher, K. L., 1972, A method of

estimating magnitude of local earthquakes from signal duration: U.S.

Geological Survey Open-File Report, 28 p.

Tarr, A. C., and King, K. W. , 1974, South Carolina Seismic Program: U.S.

Geological Survey Open-File Report 74-58, 15 p.

79

Copies of this Open"file Report

may be purchased from

Open-File Services Section

Branch of Distribution

U.S. Geological Survey

Box 25425 f Federal Center

Denver, Colorado 80225

PREPAYMENT IS REQUIRED

Price information will be published

in the monthly listing

"New Publications of the Geological Survey 1

FOR ADDITIONAL INFORMATION

CALL: Commercial: (303)234-5888

FTS: 234-5888

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