aeg-inland news february 2011 - aegsc.org · 5:30 – social spaghetti factory, banquet room 6:15...
TRANSCRIPT
“!"#"$%&'()*'+),-'./"(0()&1)2'3*'+)45607")8*93.),.9+0"(:)
Bruce Schell !"#$%%&'$(%()*"+%&,(-./%0-)&
Wednesday, February 16, 2011 5:30 – Social Spaghetti Factory, Banquet Room 6:15 – Dinner Spaghetti Factory, Banquet Room 7:15 - Speaker Spaghetti Factory, Banquet Room
Location . The Old Spaghetti Factory, Rancho Cucamonga, CA
(Meeting Cost $25; Students $5); see meeting details on page 4
AEG-IE Chapter Officers
Chapter Chair Frank Jordan
John R. Byerly, Inc. (909) 877-1324
Vice Chair Debbie Kunath
Consulting Geologist (760) 885- 0232
Treasurer David Gaddie
Consulting Geologist [email protected]
Secretary Kerry Cato
Cato Geoscience, Inc. (951) 834-2619
Association of Environmental and Engineering Geologists
Inland Empire Chapter of the Southern California Section Vol.7 No. 2
www.aegsc.org/chapters/inlandempire &
February Newsletter
!"#$%&'$()%*'+(,'-+..1&&."#$%%)$(2)3+*%4"(3&
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
Webmaster & Newsletter Editor Dr. Kerry Cato, Cato Geoscience, Inc. [email protected];
Field Trip Chairman Mark Spykerman, Earth Systems Southwest, [email protected];
Membership Chairman Richard Orr, Leighton Group, [email protected];
Past Chairs; Frank Jordan, 2005; Gary Wallace, 2006; Rick Gundry, 2007, Mike Cook, 2008; Kerry Cato, 2009; Douglas Johnston 2010.
The AEG Inland Empire Chapter Newsletter is a monthly publication of the Inland Empire Chapter of the Southern California Section, Association of Environmental and Engineering Geologists. For more information visit the Chapter website: http://www.aegsc.org/chapters/inlandempire.
Submittals: Deadline, 28th of the month. Employment notices, job position announcements, and advertisements can be posted for a minimal fee. Newsletter circulation about 170 in greater inland areas of Southern California, and elsewhere.
E-Mail Address changes: [email protected]&
,/+&0+%()123%&/-4(5'2676*+89&6>7$1&+-;&;*8$"0(-&(<&;*.7%+"$3$-6.1&+-;&.$*.3*"&78(@+@*%*0$.4&&]=$8&6#$&./@.6+-0+%&%$-)6#&(<&#*.&"+8$$8&Q^_`&>$+8.R&#$&#+.&$=+%/+6$;&#/-;8$;.&(<&<+/%6.&+-;&#+.&$a"+=+6$;&3(8$&6#+-&+&6#(/.+-;&68$-"#$.4&?#$.$&.6/;*$.&6>7*"+%%>&$37%(>&6#$&)$(%()*"+%&;*."*7%*-$.&(<&8$3(6$&.$-.*-)1&)$(3(87#(%()>1&.(*%&.68+0)8+7#>1&.$*.3(%()>1&8("M&3$"#+-*".1&+-;&)$(7#>.*".4&&J$&#+.&7/@%*.#$;&;(A$-.&(<&."*$-0B"&7+7$8.&(-&#*.&8$.$+8"#&+-;&78(W$"6&:(8M4&&E$"$-6&7+7$8.&*-"%/;$&b'$(%()*"&!68/"6/8$&+-;&C+86#\/+M$&J+A+8;&(<&6#$&K+%(.&c$8;$.&G+/%6d&*-&e``f&K+"*B"&!$"0(-&!CKP&9((M&S`g&+-;&bJ(%("$-$&<+/%0-)&*-&6#$&!+-&9$8-+8;*-(&c+%%$>&L8$+d&*-&e``U1&LC'&9/%%$0-4&&
!"#$%&$'()"*+,"-"$((.(/&0"((1(
K8(<$..*(-+%.1&&&&K8+"0"$1&h&&&&&&&&?#$&K/@%*"&
( (LC'&P$3@$8&9$-$B6.&:;)<=>!?=@A,(
• O+0(-+%&-$:.%$i$8&;4<)=4>,)• O+0(-+%&7$$8F8$=*$:$;&&?@A!=;B)@8)4=C2!@=D4=E;B)F)4=<2=44!2=<)
))<4@,G24=G4H)"(F7/@%*.#$;&:*6#&6#$&'$(%()*"+%&!("*$6>&(<&L3$8*"+&BC),=?C,(
• O+0(-+%&j$@.*6$&Q8$"$-6%>&/7;+6$;R&• !(/6#$8-&,+%*<(8-*+&!$"0(-&+-;&,#+76$8&j$@.*6$.&
DCC?=AE,(• P(-6#%>&!(/6#$8-&,+%*<(8-*+&!$"0(-&P$$0-)&• P(-6#%>&5-%+-;&C37*8$&,#+76$8&P$$0-)&
=AF@GD!?=@A(• E$)/%+6(8>&/7;+6$.&• N(@@>*-)&$Y(86.&• N*"$-./8$&/7;+6$.&<8(3&6#$&9(+8;&(<&K8(<$..*(-+%&C-)*-$$8.&h&N+-;&!/8=$>(8.&
>@A?=A;=AE(CH;>!?=@A(I(,J=<<(HCKC<@:DCA?(• ,#+76$8&.7(-.(8$;&+--/+%&!#(86&,(/8.$&• ,#+76$8&.7(-.(8$;&+--/+%&G*$%;&?8*7&
kkk&&F%++(,$*8+6$(D+L"+%#-1/#((kkk&&!6/;$-6.1&*-=$.6&*-&M@;G(>!GCCGN((((((((((((((((5=6'.*8+#(26.16+(&''+##($2(&..(:*".1'&726#9(
!(A@?C(@A(,C!G>O=AE(F@G(,?!?CP(FCHCG!<P(!AH(<@>!<(E@KCGADCA?(Q@),((Q@>&,#+*8&G8+-M&D(8;+-R&
?:(&(<&6#$&%+8)$8&:$@.*6$.&+8$&6#$&!6+6$&(<&,+%*<(8-*+l.&K$8.(--$%&9(+8;&+-;&6#$&G$;l.&D(@.&.*6$4&?#$&,?!?C(:CG,@AAC<()@!GHR#(@A<=AC(CD:<@MDCA?(>CA?CG(:$@.*6$&*.2((3-425567#+89&807:5;<=5>?@"A8&+4A(8((56&+.M.&>(/&6(&)$-$8+6$&+&/-*\/$&7$8.(-+%&78(B%$4&&?#$&=+"+-">&.$+8"#&6((%&+%%(:.&/.&6(&%((M&<(8&.7$"*B"&"%+..*B"+0(-.4&&]-"$&>(/&"+%%&/7&6#$&W(@&;$."8*70(-1&>(/&"+-&.*)-&/7&6(&8$"$*=$&+-&$3+*%&-(0B"+0(-&+->&03$&6#+6&6>7$&(<&W(@&"%+..&*.&%*.6$;1&-(&3+i$8&:#*"#&;$7+863$-6&(8&;*=*.*(-&*.&#*8*-)4&&L%%&!6+6$&W(@.&8$\/*8$&+-&+77%*"+-6&6(&B%%&(/6&+-&+77%*"+0(-&+-;&6+M$&+-&m$a+3m&6(&@$&%*.6$;&+.&+=+*%+@%$&<(8&.6+6$&W(@.4&&]-"$&+&7$8.(-&#+.&m7+..$;m&6#$&m$a+3m&6#$&+77%*"+-6&*.&+;;$;&6(&+-&+=+*%+@%$&%*.6&<(8&S&>$+8&(8&/-0%&#*8$;&@>&+&.6+6$&+)$-">1&:#*"#$=$8&"(3$.&B8.64&&5<&6#$&7(.*0(-&>(/&:+-6&*.-l6&+=+*%+@%$1&6#$&!6+6$&./))$.6.&+""$70-)&:#+6$=$8&7(.*0(-&>(/&"+-&*-&6#$&!6+6$l.&.6+@%$1&6#$-&+77%>*-)&<(8&6#$&78$<$88$;&7(.*0(-&+.&+-&*-6$8-+%&68+-.<$8&:#$-&6#+6&7(.*0(-&(7$-.&/7&Q*4$41&+""$76&+&n$764&(<&j+6$8&E$.(/8"$.&)$(%()>&7(.*0(-&/-0%&+-&$\/*=+%$-6&,+%&'$(%()*"+%&!/8=$>&)$(%()>&7(.*0(-&*.&+;=$80.$;R4&&?#$&!6+6$&7$8.(--$%&@(+8;&)*=$.&78$<$8$-"$&6(&*-6$8-+%&68+-.<$8.&(=$8&-$:&#*8$.4&&?#*.&:$@.*6$&+%.(&#+.&(77(86/-*0$.&<(8&*-6$8-.4&
?#$&G$;$8+%&D(@.&:$@.*6$&*.o&)/I6JKKLLLM9(*N&O(MP&QK)M))?#$&G$;.&+.M&<(8&+-&+77%*"+-6&6(&"8$+6$&+-&+""(/-64&&,%*"M&6#$&mG*8.6&?*3$&c*.*6(8.m&"(--$"0(-&6(&.6+864&&!$+8"#&@>&!6+6$1&n$7+863$-61&(8&W(@&6>7$4&&?#(/.+-;.&(<&W(@.&+=+*%+@%$&+%%&6#$&03$p&&C.7$"*+%%>&)((;&*<&>(/&+8$&3(@*%$1&+.&3+->&(<&6#$&78$<$88$;&7(.*0(-.&3+>&8$\/*8$&+&3(=$&6(&.$"/8$&$37%(>3$-64&&5&$.7$"*+%%>&%*M$;&mn*8$"6(8&(<&O+0(-+%&C+86#\/+M$&J+A+8;.&E$;/"0(-&K8()8+3m&+-;&mJ$+;&(<&9/8$+/&(<&N+-;&P+-+)$3$-61&L%+.M+4d&&
C+"#&%("+%&)(=$8-3$-6&:*%%&#+=$&3(8$&(8&%$..&W(@&(77(86/-*0$.&;/$&6(&6#$&"/88$-6&B."+%&68(/@%$.&+6&6#$&!6+6$4&&L.&+-&$a+37%$1&N(.&L-)$%$.&,(/-6>l.&W(@&.$+8"#&.*6$&*.o&(3-4255"&+>"$8978,&89&8%+567#+59B+9$>4C+5+"&$93D#7@'89BE(8((F7(C7(C3"(m?*7.&(-&#(:&6(&/.$&W(@&.$+8"#&</-"0(-m&<(8&*-*0+%&*-<(4&&C-6$8&>(/8&=*6+%&;+6+&+-;&78$..&6#$&m!$+8"#m&@/i(-4&&]8+-)$&,(/-6>&%*.6.&7(.*0(-.&=*+&6#$*8&D(@&]77(86/-*0$.&.*6$&+6o&&#i7oXX+)$-">4)(=$8-3$-6W(@.4"(3X("X;$<+/%64"<3&4&&,8$+6$&+&-$:&+""(/-6&+.&+&B8.6&03$&+77%*"+-64&&?#$&D(@.&%*.0-)&@(a&+6&6#$&@(i(3&(<&6#$&.*6$&.#(:.&:#*"#&;$7+863$-6.&#+=$&7(.*0(-.&+=+*%+@%$&+-;&#(:&3+->4&
!"#$%&$'()"*+,"-"$((.(/&0"((G(
(Q&6*&%4(STUU&F&!CE(=6.&68(CL/1%+(>-&/$+%&
( ( (D4(?V2(>+6$#((?-+(>-&1%/+%#26W#(>-&$(
.6(8$&.#$%=$.4&N*-$.&+6&)+.&.6+0(-.4&&,(6.&+6&+*87(86.4&&[0%*6>&:(8M$8.&<8(3&+8(/-;&6#$&"(/-68>&78$F7(.*0(-$;&6(&8$;/"$&8$7+*8&03$.4&&bJ$8$&*6&,(3$.p&&J*.6(8*"&!6(83p&&,#*"+)(&6(&8$"$*=$&7/33$%*-)pd&&6#$&6+%M*-)&#$+;.&.+>4&&!0%%1&6#$&:+8-*-).&<8(3&6#$&$+8%*$8&.6(83&:$8$&7((8%>&#$$;$;&*-&O$:&q(8M&,*6>4&
&5&8$"+%%&+&.*3*%+8&<(8$:+8-*-)4&&P+..*=$&#/88*"+-$&#+.&<(83$;&*-&6#$&,+8*@@$+-4&&!(/6#$8-&G%(8*;+&*-&*6.&7+6#4&&?#$&.6(83&:*%%&.68$-)6#$-&+.&*6&$-6$8.&6#$&:+83$8&:+6$8.&(<&6#$&'/%<4&&G(8$"+.6&3+7.&+%%&+)8$$&r&J/88*"+-$&s+68*-+&*.&#$+;$;&<(8&O$:&]8%$+-.4&&]*%&8*).&:$8$&.#/6&*-&+-;&:(8M$8.&7/%%$;&(Y&6#$&8*).4&&GCPL&+3+..$;&./77%*$.&*-&6#$&(/6%>*-)&.6+6$.4&&P*..*..*77*&:+.&$=+"/+6$;4&&L-;&+%6#(/)#&6#$&!6+6$&(<&N(/*.*+-+t.&+-;&6#$&,*6>&(<&O$:&]8%$+-.t&$3$8)$-">&7%+-.&78(=$;&*-+;$\/+6$&6(&%$=$$&<+*%/8$.1&6#$&.68$$6.&(<&6#$&"*6>&:$8$&$376>&+-;&6#(.$&:#(&"(/%;-t6&(8&;*;-t6&%$+=$&:$8$&@+i$-$;&;(:-&*-&6#$&"(-=$-0(-&"$-6$8&+-;&!/7$8&n(3$4&&5<&6#$&%$=$$.&#+;&#$%;1&6#(.$&<(%M.&:(/%;&#+=$&"(3$&(/6&(<&6#$*8&.#$%6$8.1&8/@@$;&6#$*8&$>$.1&+-;&.+*;1&bL:1&*6&:+.-t6&6#+6&@+;p&&j#+6&:+.&+%%&6#$&</..&+@(/6ud&
&!(&3$6$(8(%()>&*.&.#(:*-)&/.&6#$&:+>4&&!+6$%%*6$.1&+*87%+-$.1&.#*7.1&@/(>.1&"(37/6$8&3(;$%.1&"(37/6$8&)8+7#*".1&#*.6(8*"&8$"(8;.1&7$8.(-+%&$a7$8*$-"$.&+%%&"(-68*@/6$&6(&+&<(8$"+.0-)&.>.6$3&6#+6&.+=$.&%*=$.1&3*-*3*A$.&*37+"6.&+-;&;(:-03$1&+-;&+%%(:.&/.&6(&.6$7&(/6&(<&6#$&:+>&(<&6#$&8+)*-)&@/%%.1&*<&:$&:+-6&6(1&(8&#/-M$8&;(:-&+-;&3+8=$%&+6&O+6/8$t.&</8>4&&]<&"(/8.$1&*6&#$%7.&6#+6&+%%&(<&3$6$(8(%()>&8$.6.&+@(=$&)8(/-;v4&
&'$(%()>&78(=*;$.&.(3$&(<&6#$&.+3$&bJ$+;.&/7pd&"+%%.4&&J+83(-*"&68$3(8.&<(8$6$%%&(<&=(%"+-*"&$8/70(-.4&&K8$"*.$&5-!LE&3$+./8$3$-6.&68+"M&%+-;.%*;$&"8$$7&*-&56+%>&+-;&./@.*;$-"$&*-&6#$&[4!4&&?/@/%+8&@$%%.&+%.(&)*=$&:+8-*-).&(<&.%*;$&3(=$3$-64&&?#$&;$.68/"0(-&(<&8$3(6$&.$-.(8.&+%%(:.&7$8.(--$%&6(&68+"M&%+#+8.1&;$@8*.&w(:.1&+=+%+-"#$.4&&[-<(86/-+6$%>1&$+86#\/+M$.&.0%%&$%/;$&/.4&&j$&8$"$*=$&(-%>&+&<8+"0(-&(<&6#$&3(-$>&+-;&8$.(/8"$.&6#+6&68+"M&+-;&b<(8$"+.6d&6#$&:$+6#$84&&?#$>&#+=$&;+*%>&/7;+6$.&+6&$=$8>&?c1&8+;*(&+-;&-$:.7+7$81&7%/.&+&;$=(6$;&"+@%$&"#+--$%&+-;&-/3$8(/.&O]LL&:$@.*6$.4&&&j$&/.$;&6(&#+=$&+&-*)#6%>&./33+8>&(<&!(&,+%&$+86#\/+M$&+"0=*6>&(-&"#+--$%&SS&r&)*=$-&@>&+&3$6$(8(%()*.6p&&9/6&6#(.$&;+>.&+8$&%(-)&)(-$4&&j*%%&:$&$=$8&b<(8$"+.6d&$+86#\/+M$.u&&j$&#+=$&78$i>&#*)#&#/8;%$.&6(&(=$8"(3$4&&K8$"*.$&3+)-*6/;$1&;+6$1&+-;&%("+0(-4&&P+>@$&:$&.#(/%;&%*3@(&B8.64&&?#$&,(%%+@(8+6(8>&<(8&C+86#\/+M$&K8$;*"6+@*%*6>&Q,!CKR&*.&(-$&./"#&$Y(864&&[,NL1&[,51&[,n&+%%&#+=$&6#$*8&#+6.&*-&6#$&8*-)4&&5<&(-%>&:$&#+;&6#+6&@(8*-)&3+"#*-$&<8(3&?#$&,(8$4&&]8&+&J(86+4&&J3331&6#$&7(..*@*%*0$.p&
&5t%%&#+=$&3(8$&?>9H",&6(&6(..&>(/8&:+>&-$a6&3(-6#4&&!$$&>(/&#"3>?@(C3"(I7$C&p &&
& & & & &F%&60(Q2%8&6P(Q%X(& & & & & &,#+*87$8.(-1&J<F&5-%+-;&C37*8$&,#+76$8&
&?#$&3+W(8*6>&(<&6#$&"(/-68>&:+.&W/.6&*-&6#$&)8*7.&(<&>$6&+-(6#$8&@%+.6&<8(3&]%t&P+-&j*-6$84&&9/6&*6&*.&-(&./878*.$4&&?#$&3$6$(8(%()*.6.&#+=$&@$$-&<(8$"+.0-)&6#$&%("+0(-1&03*-)&+-;&.68$-)6#&(<&6#*.&.6(83&<(8&;+>.4&&?#$&j$+6#$8&,#+--$%&#+.&@$$-&.#(:*-)&6#$&7+6#:+>.&(<&_&"(37/6$8&3(;$%.&+-;&6#$>&+%%&@+.*"+%%>&+)8$$;&r&?$a+.1&]M%+#(3+1&P*..(/8*1&5%%*-(*.1&5-;*+-+1&]#*(1&]-6+8*(1&O$:&q(8M4&&!/77%*$.&#+=$&@$$-&;*.+77$+8*-)&(Y&&
;:>@D=AE(DCC?=AE,&G$@&f & &F&,>E,1&b?(&9$&(8&O(6&?(&9$&Q+-&L"0=$&G+/%6R&r&G8(3&?8$-"#&6(&,(/868((31d&9$-W+3*-&?4&9$-/3(<1&&
& & &K#4&n41&C.\41&x734&G$@&f & &FEG!1&?#$&'8(/-;:+6$8&E$.(/8"$.&L..("*+0(-&(<&,+%*<(8-*+&:*%%&@$&.7(-.(8*-)&6#$&!EB!&+-;&&
( ( (!EB?&J??%&,(=7?B"$"?9"(7?(K"93&$0"(L>,"EE&+(B7$(M&C"$(N&?&0"$+1&]-6+8*(1&,L4(G$@&TFSe& &F&CCG=1&O+0(-+%&P$$0-)1&N+&D(%%+&G$@&S`FSS& &F&!,>CYC6Z41&OC7$E*&C"$(PN/Q+(C3&C(M7$H&G$@&SV& &F&,DC1&n84&P*"#+$%&s+83*.1&=&$#7?(=&4C%$"(&?@(OC7$&0"(K"+"&$932((R3"(K7&@(C7(L"4,7'E"?C1&
K(3(-+&G$@&Sx &F&,H!E1&?9n&G$@&Sf& & &F&!,>CY@>1&L:+8;.&9+-\/$61&#i7oXX:::4$=$-6@8*6$4"(3X$=$-6XS`feVS_TeSX8$.6&G$@&SfFSU& &F&!,>CYDI<1&O"E>?&$(7?(!>?&?9>&,(N&?&0"E"?C(B7$(C3"(/8<8(G$@&egFeV& &F&!,>CYEE1&M7$H+374(7?(S?C$7(C7(R%??",(L"+>0?(&?@(=7?+C$%9T7?(P+8&g & (.(=E,P(RPJ1&n84&N+8*..+&n(@8A#*-$6.M+>+1&[,FE*=$8.*;$1&N!L&L..("*+6$.1&E*=$8.*;$(P+8&V& & &F&!,>CY<!1&L-;8$:&J$83+--1&R$>#%C"(C7(JO=<(U>B"(N"E#"$+(P+8&U& & &F&!CEY,2*$-+%6(>&.1[2%61&(,+'726P()"*(@&C&V(?"*(97?9"4C+V(&?@($"W"9T7?+(7?(&9T:"(B&%,C+(>?(C3"((
(U7+(J?0","+($"0>7?1&98/"$&!"#$%%1&!6$=$-.&!6$+M&J(/.$1&,(33$8"$&&P+8&SV& &F&,DC1&j+%6$8&N(3@+8;(1&L>&E7?@(N>?"+(>?()78(JE"$>9&1&K(3(-+&P+8&egFeV &F&\]%8(,4L/2#1*L(26(C6316++%163(E+2.234(&68(E+2$+'-61'&.(C6316++%163P(;61Z+%#1$4(2[(A+Z&8&(
<&#(K+3&#^((-_/^``STUUX+33+#4L/2#1*LX'2L`([2%(L2%+(16[2%L&726(&68($2(%+31#$+%X((&P+8&e_FeV& &F&!,>CYEE1&O"E>?&$(7?(K>+H(J++"++E"?C(>?(F"7C"938(<?0>?""$>?0&L78&U &FE%+33(#-2%$('2*%#+1&b=7?"(/"?"C$&T7?(R"+T?0(!7$(F"7C"93?>9&,(/$7B"++>7?&,+1d&@>&n84&K$6$8&
E(@$86.(-1&J/-0-)6(-&9$+"#4&&G(8&3(8$&*-<(&.$$&+;&6#*.&-$:.%$i$8&(8&:::4)8$));8*%%*-)4"(3X.$3*-+8.4#63&&
L78&Se& &F&EG!1&x6#&!>34&*-&?((%.&+-;&?$"#1&<?:>$7?E"?C&,(!7$"?+>9+(>?(&?(<$&(7B(<E"$0>?0(L>&0?7+T9(N"C37@+1&58=*-$1&,L&&#i7oXX:::4)8+"4(8)X$-=*8(-3$-6+%<(8$-.*".4+.7&
L78&Sg &FE%+33(#-2%$('2*%#+1&b=7?"(/"?"C$&T7?(R"+T?0(!7$(F"7C"93?>9&,(/$7B"++>7?&,+1d&@>&n84&K$6$8&E(@$86.(-1&9$8M$%$>4&
L78&eeFeV& &F&H+#+%$(,4L/2#1*L1&HA>Aa&&P+>&TFSS &F&!!:E(:&'1a'(,+'7261&!$"0(-&3$$0-)1&L-"#(8+)$1&Ls&P+>&SUFe`& &F&E,!(>2%81..+%&6`G2'04(D$6XP(P$$0-)1&N()+-&[?&&&&&&&&&&&&&&&&
!"#$%&$'(()"*+,"-"$((.(/&0"((X(
F+"%*&%4(=6.&68(CL/1%+(>-&/$+%((
D++763(=6[2%L&726(?-+(@.8(,/&3-+b(F&'$2%4P(G&6'-2(>*'&L263&P(>!(YYZ[\(!77C3>,,(P,:@V(K&?937(=%9&E7?0&(=J&
H166+%('-21'+#o&&QyeVR&• ,#*"M$-&G$i/""*-$&&• 9+M$;&N+.+)-+&• P$+6&%(=$8.&.7$"*+%&&&
5-"%/;$.o&&&)+8;$-&.+%+;1&<8$.#&@+M$;&@8$+;1&+-;&;$..$86&&& &(<&=+-*%%+&*"$&"8$+34&&&
n8*-M.o&&Li$-;$$.&:*%%&#+=$&+&"#(*"$&(<&*"$;&(8&#(6&6$+1&&&"(Y$$1&.(;+1&(8&3*%M4&&j*-$1&@$$81&+-;&"("M6+*%.&+8$&&&+=+*%+@%$&<(8&+i$-;$$.&6(&7/8"#+.$&(-&6#$*8&(:-4&(
>2#$o& &K8(<$..*(-+%.&yeVz&!6/;$-6.&yV&G,K:o&& &9>&G8*;+>&G$@8/+8>&SS1&e`SS&&F&&
+$)*-%+-;2)3+*%4"(3&
H=GC>?=@A,(?@(DCC?=AE(G8(3&6#$&5FSV&-(86#&Q-(86#&(<&6#$&5FS`Ro&?+M$&6#$&G((6#*%%&9(/%$=+8;&(YF8+374&&K8("$$;&:$.6&Q%$IR&(-&G((6#*%%&+@(/6&{&3*%$&6(&E("#$.6$8&L=$-/$4&&?#$&]%;&!7+)#$|&G+"6(8>&*.&(-&6#$&-(86#:$.6&"(8-$8&(<&E("#$.6$8&+-;&G((6#*%%&Q$+.*%>&.$$-&<8(3&G((6#*%%&9(/%$=+8;R4&&
G8(3&6#$&5FSV&.(/6#&Q.(/6#&(<&6#$&5FeS`Ro&?+M$&6#$&G((6#*%%&9(/%$=+8;&(YF8+374&&K8("$$;&:$.6&Q8*)#6R&(-&G((6#*%%&+@(/6&{&(<&+&3*%$&6(&E("#$.6$8&L=$-/$4&&?#$&]%;&!7+)#$|&G+"6(8>&*.&(-&6#$&-(86#:$.6&"(8-$8&(<&E("#$.6$8&+-;&G((6#*%%&Q$+.*%>&.$$-&<8(3&G((6#*%%&9(/%$=+8;R4&
@*%(Q&6*&%4(,/+&0+%(
QN$IR&!7$+M$8&H%X()1..(O&6+"+%3(;*."/..$.&#*.&.*6$&*-=$.0)+0(-&+6&6#$&N+78+M1&O$7+%&%+-;.%*;$4&&?#*.&6+%M&:+.&78$.$-6$;&6(&6#$&[,FE*=$8.*;$&n$7+863$-6&(<&'$(."*$-"$4&5-&6#$&8*)#6&7#(6()8+7#1&6#$&.7$+M$8&+""$76.&+&6(M$-&(<&+778$"*+0(-&<8(3&LC'&5-%+-;&C37*8$&,#+*8&G8+-M&D(8;+-4&&&
N""T?0(437C7+(#'(]"$$'(=&C7(
:1'$*%+#([%2L($-+(Q&6*&%4(STUU(!CE(=6.&68(CL/1%+(>-&/$+%(D++763(QE*)#6R&LC'}5C&,#+76$8&3$3@$8.&+:+*6&6#$&.7$+M$8t.&1&n84&9*%%&J+-$@$8)&Q@+"M&6(&7#(6()8+7#$8R&78$.$-6+0(-4(
QN$IR&LC'&5C&3$3@$8.&%*.6$-&6(&,#+*8&G8+-M&D(8;+-&;*."/..&/7"(3*-)&$=$-6.4((
!"#$%&$'()"*+,"-"$(^(/&0"(_(
@?OCG(!AA@;A>CDCA?,(>E,(C&%$-c*&0+(>.+&%163(O2*#+(?#$&,+%*<(8-*+&'$(%()*"+%&!/8=$>&#+.&$.6+@%*.#$;&+&-$:&78()8+3&+-;&:$@.*6$1&6#$&,+%*<(8-*+&C+86#\/+M$&,%$+8*-)&J(/.$4&!$$&98("#/8$&(-&%+.6&e&7+)$.&(<&-$:.%$i$84&&?#$&,%$+8*-)#(/.$&*.&+&7%+"$&6(&"((8;*-+6$&$+86#\/+M$&B$%;&*-=$.0)+0(-.&+-;&.#+8$&(@.$8=+0(-.&+-;&M-(:%$;)$&+3(-)&$3$8)$-">&8$.7(-;$8.&+-;&6#$&$-)*-$$8*-)&+-;&."*$-0B"&"(33/-*0$.4d&LC'&3$3@$8.&+8$&.68(-)%>&$-"(/8+)$;&6(&.*)-&/7&+-;&7+80"*7+6$&(-&6#$&=+8*(/.&./@F&"(33*i$$.4&?#$&-$a6&3$$0-)&:*%%&@$&*-&L78*%&*-&!(/6#$8-&,Lz&6#$&;$6+*%.&:*%%&@$&+--(/-"$;&.#(86%>&(-&6#$&:$@&.*6$4&K%$+.$&.$$&6#$&C+86#\/+M$&,%$+8*-)#(/.$&w>$8&(-&6#$&<(%%(:*-)&6:(&7+)$.&<(8&+-&*-68(;/"0(-&6(&6#$&-$:&78()8+34&G(8&3(8$&*-<(83+0(-&"(-6+"6o&&L--$&E(.*-.M*1&K'&f_US1&,C'&egVg1&!$-*(8&C-)*-$$8*-)&'$(%()*.6&!$*.3*"&J+A+8;&L..$..3$-6&K8()8+31&,+%*<(8-*+&'$(%()*"+%&!/8=$>1&g_V&P*;;%$B$%;&E(+;1&P!&Ve`&P$-%(&K+8M1&,L&T_`eV&xV`4xUU4xgfg&G+ao&xV`4xUU4xgeT&L--$4E(.*-.M*2"(-.$8=+0(-4"+4)(=&&&
:2#1726#(!Z&1.&".+([2%(C6$%4(<+Z+.(&68(:%2d+'$(<+Z+.(E+2.231#$#(&$(,*",*%[&'+(H+#136#P(=6'XP(<2#(!63+.+#(!/@!/8<+"$&n$.*)-.1&5-"41&+-&$.6+@%*.#$;&N(.&L-)$%$.&)$(6$"#-*"+%&$-)*-$$8*-)&B831&*.&.$$M*-)&C-68>&N$=$%&+-;&K8(W$"6&N$=$%&'$(%()*.6.4&K+86F03$&+-;&</%%F03$&7(.*0(-.&+=+*%+@%$4&?#$&8*)#6&\/+%*B$;1&*-;$7$-;$-6&+-;&#+8;F:(8M*-)&*-;*=*;/+%&:*%%&@$&(Y$8$;&+-&$a"$%%$-6&.+%+8>1&78(B6&.#+8*-)&+-;&@$-$B6&7+"M+)$&"(33$-./8+6$&:*6#&6#$*8&$a7$8*$-"$4&C\/+%&]77(86/-*6>&C37%(>$84&G(8&"(-.*;$8+0(-1&<+a&(8&$3+*%&>(/8&8$./3$&*-&"(-B;$-"$&6(o&!/@!/8<+"$&n$.*)-.1&5-"4&Li-o&P+8M&?8*$@(%;&SeU_U&G((6#*%%&9%=;4&!>%3+81&,L&TSg_eUSUFUTUFSVTV&Q(~"$R&USUFUTUF_``g&Q<+".*3*%$R&3+8M2./@./8<+"$;$.*)-.4"(3&&&
C6316++%163(E+2.231#$#(&$(>&.1[2%61&(E+2.231'&.(,*%Z+4&&?#$&,+%*<(8-*+&'$(%()*"+%&!/8=$>&*.&#*8*-)&$-)*-$$8*-)&)$(%()*.6.4&,'!&-$$;.&6(&8$"8/*6&+-;&#*8$&-$:&$-)*-$$8*-)&)$(%()*.6.&6(&3+*-6+*-&.6+~-)&%$=$%.&+.&.6+Y&8$08$.&(8&3(=$.&(-4&?#*.&3+>&-(6&@$&6#$&(@=*(/.&03$&6(&%((M&<(8&+&W(@&:*6#&6#$&.6+6$1&@/6&,'!&)$6.&3(.6&(<&*6.&</-;*-)&6#8(/)#&.7$"*+%&</-;.&+-;&"(-68+"6.1&-(6&6#$&)$-$8+%&</-;4&j#$-&,'!&-$$;.&6(&#*8$1&+-&+--(/-"$3$-6&*.&7(.6$;&(-&6#$&!6+6$&K$8.(--$%&9(+8;l.&mcK]!m&:$@&.*6$&Q&#i7oXXW(@.4.7@4"+4)(=X:=7(.&R4&!$+8"#*-)&<(8&mC-)*-$$8*-)&'$(%()*.6m&6#$8$&:*%%&B-;&6#$&7(.*0(-.&6#+6&6#$&!6+6$&*.&-(:&+""$70-)&+77%*"+0(-.&<(84&?#(.$&"/88$-6%>&*-"%/;$&+&7(.*0(-&*-&,'!l.&'$(%()*"&P+77*-)&K8()8+34&?#+6&7(.*0(-&*.&%*.6$;&+.&:*6#*-&6#$&n$7+863$-6&(<&,(-.$8=+0(-4&!$$&6#$&:$@&7+)$&<(8&6#$&</%%&W(@&;$."8*70(-&+-;&+77%*"+0(-&*-.68/"0(-.4&K%$+.$&-(6$&6#+6&6(&@$&#*8$;&@>&6#$&.6+6$1&+&"+-;*;+6$&3/.6&7+..&+-;&7%+"$&*-&6#$&#*)#$.6&6#8$$&8+-M.&(-&+&"*=*%&.$8=*"$&$a+34&?#$&C-)*-$$8*-)&'$(%()*.6&$a+31&W(*-6%>&;$=$%(7$;&@>&6#$&n$7+863$-6&(<&,(-.$8=+0(-&+-;&6#$&n$7+863$-6&(<&j+6$8&E$.(/8"$.1&*.&+-&(-%*-$&\/+%*B"+0(-.&+778+*.+%4&56&*.&7(..*@%$&6(&6+M$&6#$&$a+3&+6&6#$&.+3$&03$&>(/&.$-;&*-&+-&+77%*"+0(-1&@/6&@(6#&.6$7.&+8$&8$\/*8$;4&?#$&(-%*-$&+77%*"+0(-&+-;&m./77%$3$-6+%&\/$.0(--+*8$m&Q$a+3R&+8$&+6&6#*.&:$@&7+)$4&#i7oXXW(@.4"+4)(=X,L!K9X./7X9/%K8$=*$:4+.7uES�`TVxTThEe�``S`gfVxhEg�TK9`e&#i7oXXW(@.4.7@4"+4)(=X:=7(.X3(8$}*-<(4"<3u8$"-(�_SVfTf&,#8*.&j*%%.&!/7$8=*.*-)&C-)*-$$8*-)&'$(%()*.6&,+%*<(8-*+&'$(%()*"+%&!/8=$>&U`S&s&!64&P!&SeFge&!+"8+3$-6(1&,L&TVUS_FgVgS&&
C6Z1%26L+6$&.(E+2.231#$`C6316++%(&$(E+2'26P()*%"&60P(>!(!$$&+;;&(-&<(%%(:*-)&7+)$4&
&&&&&&&&&&&&&&&&
!"#$%&$'(()"*+,"-"$((.(/&0"((\(
!"#$#% & '()*+,-. $/!"#$%&"'(")*+ ,(&+&-$.)/!"-$"((%
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
31* 4052)67861,9
! @(%0&%' @4*.( A *"3 AA ("#$%&"'(")*+ .$)( *..(..'(").<! B$)( $"#(.)$-*)$&"> 0$(+3 -(&+&-$2 '*66$"-> 2&&%3$"*)$&" *"3 &#(%.$-4) &0 .1;.1%0*2(
(56+&%*)&%7 ;&%$"-. *"3 )%("24(.<! @(%0&%' .&$+ .*'6+$"- *"3 *..$.) $" )4( 3(#(+&6'(") &0 +*;&%*)&%7 )(.)$"- 6%&-%*'.! C&'6+()( )(.) )%("24 *"3 ;&%$"- +&-.> 6%(6*%( -(&+&-$2 2%&.. .(2)$&".> '*6.> *"3
&)4(% $++1.)%*)$&".! ,%&1"39*)(% .*'6+$"- *"3 *"*+7.$.! @%(6*%*)$&" &0 -(&+&-$2 *"3 -(&)(24"$2*+ %(6&%). %(+*)$"- )& 3(#(+&6'(") &0
%(.$3(")$*+> 2&''(%2$*+> *"3 '1"$2$6*+ 6%&:(2).<
":70)60,20;<0=(6)0>0,859
! D*24(+&%E. F(-%(( $" ,(&+&-7 &% !"-$"((%$"-! ,%*31*)( +(#(+ (312*)$&" 6%(0(%%(3 ;1) "&) %(G1$%(3! H I 7(*%. (56(%$("2( 9$)4 @4*.( A *"3 0$(+3 $"#(.)$-*)$&". J-(&+&-$2 '*66$"->
(56+&%*)&%7 ;&%$"-./)%("24(.K !56(%$("2( $" .&1)4(%" C*+$0&%"$* 6%(0(%%(3! !52(++(") 9%$))(" *"3 #(%;*+ 2&''1"$2*)$&" .8$++.! @%&0$2$(") 2&'61)(% .8$++. $"2+13$"- 9&%3 6%&2(..$"- *"3 (52(+<! LBMN OP 4&1% MNQRL@!S )%*$"$"- %(G1$%(3! C@T T12+(*% ,*-( )%*$"$"- * 6+1.<! U*+$3 C*+$0&%"$* 3%$#(%.V +$2(".(> 21%%(") FWU 6%$")&1)> *"3 #(4$2+( 0&% 1.( )& )%*#(+
)& #*%$&1. .$)(.<! N;+( )& +$0) 16 )& IP +;.< &" * %&1)$"( ;*.$.
,(&2&" &00(%. * 2&'6%(4(".$#( ;("(0$) 6*28*-(> $"2+13$"- W(3$2*+> F(")*+> U$.$&"> !N@> ?BN*"3 ('6+&7(% 6*$3 D*.$2 X$0(/NFYF *"3 X=F> *. 9(++ *. OPZJ8K *"3 @%&0$) B4*%$"-< R( *+.&&00(% U&+1")*%7 X$0( *"3 * -("(%&1. 4&+$3*7/.$28 *"3 #*2*)$&" 6&+$27<
?@0+50 )0571,A /B/? 6C D1( E1(@A @6-0 21,56A0)+861,F =4$. $. *" $''(3$*)( &6("$"- $" )4(D1%;*"8 %(-$&" &0 .&1)4(%" C*+$0&%"$*< ?&% $''(3$*)( 2&".$3(%*)$&" 6+(*.( .("3 %(.1'( *"3.*+*%7 4$.)&%7 )& W$8( C&"8+( ;7 ('*$+ )& 2&"8+([-(&2&"$"2<2&'> &% ;7 0*5 )& J\Z\K \OZZ]PO> &% ;7 '*$+ )& ,(&2&"> ^^P^ T< B*" ?(%"*"3& D&1+(#*%3> B1$)( ZPP> D1%;*"8> CN _ZIPO<
,(&2&" $. *" N00$%'*)$#( N2)$&"/!G1*+ L66&%)1"$)7 !'6+&7(%> W/?/F/U<D("(0$). *"3 .*+*%7 ;*.(3 &" (56(%$("2(
2010 El Mayor-Cucapah earthquake. Photo: R. Lloyd
2010 El Mayor-Cucapah earthquake. Photo: R. Anderson
What is the California Post-Earthquake Clearinghouse?!e Clearinghouse is a resource shared by government agencies, non-pro"t organizations and academia after damaging earthquakes, where engineers, geologists, seismologists, sociologists, economists, and other researchers who collect information about the a#ected area can participate in a temporary organization to facilitate the gathering and sharing of information, maximize its availability, and better use the talents of those present.
!e Clearinghouse may be located in a physical structure, generally with easy access to both the damaged area and the emergency operations "eld location, and it is expected to also be “virtual” where an on-line location will be maintained for information and data sharing.
!e Clearinghouse’s principal function is to provide State and Federal disaster response managers, and the scienti"c and engineering communities with prompt information on ground failure, structural damage, and other consequences from signi"cant seismic events such as earthquakes and tsunamis.
!e Clearinghouse: 1) coordinates "eld investigations of earth scientists, engineers, and other participating researchers; 2) facilitates sharing of observations through regular meetings and through the Clearinghouse website; and 3) noti"es disaster responders of crucial observations or results.
A place to coordinate earthquake !eld investigations and share observations and knowledge among emergency responders and the engineering and scienti!c communities
Who Participates in Clearinghouse Activities? !e Clearinghouse membership is comprised of earth scientists, engineers, emergency managers, and other professionals representing various state agencies, federal bureaus, universities, private institutions and professional organizations. !e Clearinghouse is managed by representatives from 5 agencies: the California Emergency Management Agency (CalEMA), California Geological Survey (CGS), California Seismic Safety Commission (CSSC), Earthquake Engineering Research Institute (EERI), and the U.S. Geological Survey (USGS). !is management group confers after damaging earthquakes to decide whether or not to activate the Clearinghouse.
The California Post-Earthquake Clearinghouse
Clearinghouse Meetings and PlanThe Clearinghouse holds regular meetings and exercises to maintain strong working relation-ships among participating agencies and institu-tions and to continually improve its operational preparedness. Clearinghouse activities are guided by an Operation Plan developed and maintained by the Management group. This document outlines Clearinghouse functions, agency involvement, management, resource needs, and operating procedures. The plan can be found on the Clearinghouse website: http://www.eqclearinghouse.org/CA/
2010 O!shore Northern CA (Eureka) earthquake. Photo: Lizundia
For more informationVisit the Clearinghouse website
at www.eqclearinghouse/CA
2
Do other States have Clearinghouses?The Western States Seismic Policy Council (WSSPC, website www.wsspc.org), in its Policy 10-3, notes that Clearinghouse operations have been held in Washington and Nevada and that some of its others member states have been devel-oping Clearinghouse plans.The states in the New Madrid Region of the midwest are also working on a clearinghouse plan across states. An extensive clearinghouse operation was used after Hurricane Katrina in Louisiana.
Both WSSPC and the National Earthquake Haz-ard Reduction Program (NEHRP) recommend that states with earthquake hazards establish a plan for a post-earthquake technical clearinghouse to be activated if possible within 24 hours after each major earthquake within its jurisdiction. WSSPC also recommends multijurisdictional agreements that support the establishment of a single compre-hensive technical clearinghouse in the event of a large earthquake.
In 2002, the USGS released Circular 1242, The Plan to Coordinate NEHRP (National Earthquake Hazards Reduction Program) Post-Earthquake Investigations, as “a framework for both coordi-nating what is going to be done and identifying responsibilities for post-earthquake investigations” and suggests establishment of a Technical Clear-inghouse within 24 hours following a significant earthquake.
Circular 1242 can be found here: http://geopubs.wr.usgs.gov/circular/c1242/.
Why is !ere a Need for a Post-Earthquake Clearinghouse? Large damaging earthquakes in California attract scores of researchers from around the U.S. and internationally who ar-rive in the a!ected area to investigate ground failure, structural damage, social or "nancial impacts of devastation, or simply to lend a hand. Clearly, "eld observations made by these indi-viduals, and information compiled by the companies, agencies and institutions they represent, could add substantially to the critical information base needed immediately by emergency response managers and, eventually, by all interested in seismic-related phenomena and seismic safety.
However, in the absence of an established, organized body to facilitate the reconnaissance activities and integrate the observations of the individuals, much of the information gathered during the immediate aftermath of a strong seismic event will not be compiled and shared, thereby minimizing the opportunity to enhance our collective understanding of seismic processes and impacts. Nor would the information be made available to the California Emergency Management Agency (CalEMA), who coordinates emergency response, damage assessment, and early recovery operations following disastrous earthquakes in the state.
In addition, the Clearinghouse provides the following:• A way to track "eldwork progress of investigators in
order to minimize duplication of e!orts and maximize ex-amination of the a!ected area
• Geographic Information System(GIS) technology, data, imagery, photos, and maps to geolocate data and assist "eld investigators
• Information synthesis and dissemination to assist Federal and State Emergency Operations Centers, State and Fed-eral Geologists, and other appropriate recipients.
Participation is voluntary. #e actual make up of any Clearing-house varies depending on the earthquake event. For instance, a Clearinghouse for earthquakes occurring in sparsely settled areas with few structures would likely be composed of more geologists than engineers. Earthquakes impacting major metro-politan regions would likely involve many disciplines including social scientists.