seismic reflection image along i-64 pratt et al., 1988 coruh et al., 1988

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Page 1: Seismic Reflection Image along I-64 Pratt et al., 1988 Coruh et al., 1988
Page 2: Seismic Reflection Image along I-64 Pratt et al., 1988 Coruh et al., 1988
Page 3: Seismic Reflection Image along I-64 Pratt et al., 1988 Coruh et al., 1988
Page 4: Seismic Reflection Image along I-64 Pratt et al., 1988 Coruh et al., 1988
Page 5: Seismic Reflection Image along I-64 Pratt et al., 1988 Coruh et al., 1988

Seismic Reflection Image along I-64

Pratt et al., 1988

Coruh et al., 1988

Page 6: Seismic Reflection Image along I-64 Pratt et al., 1988 Coruh et al., 1988

Ground acceleration at the North Anna Power Stationduring the August 23rd 2011 earthquake

Graph by Martin Chapman, Va Tech

Page 7: Seismic Reflection Image along I-64 Pratt et al., 1988 Coruh et al., 1988

Ground acceleration at the North Anna Power Stationduring the August 23rd 2011 earthquake

Graph by Martin Chapman, Va Tech

Peak ground acceleration 260 cm-2

or 0.26 g or 26% of gravity

1971 Report for VEPCO “that the maximum horizontal ground acceleration… at the site due to such a shock would be no more than 12% of gravity”

Page 8: Seismic Reflection Image along I-64 Pratt et al., 1988 Coruh et al., 1988

shaking too strong for instrument

55 km from epicenter

127 km from epicenter

193 km from epicenter

231 km from epicenter

time (seconds)

Shaking in Virginia

VTSO

Page 9: Seismic Reflection Image along I-64 Pratt et al., 1988 Coruh et al., 1988

Shaking Across USA

C. Bailey & U. South Carolina

Page 10: Seismic Reflection Image along I-64 Pratt et al., 1988 Coruh et al., 1988

Felt Shaking

USGS

Page 11: Seismic Reflection Image along I-64 Pratt et al., 1988 Coruh et al., 1988

Epicenter, August 23 Mainshock

National Earthquake Hazard Map

USGS

Page 12: Seismic Reflection Image along I-64 Pratt et al., 1988 Coruh et al., 1988

Fault Motion

Page 13: Seismic Reflection Image along I-64 Pratt et al., 1988 Coruh et al., 1988

Aftershocks at Depth

R. Herrmann

slice along N120˚E

Page 14: Seismic Reflection Image along I-64 Pratt et al., 1988 Coruh et al., 1988
Page 15: Seismic Reflection Image along I-64 Pratt et al., 1988 Coruh et al., 1988

Louisa County

VA DMME photos