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

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Transcript of Seismic Reflection Image along I-64 Pratt et al., 1988 Coruh et al., 1988.

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

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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

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Shaking Across USA

C. Bailey & U. South Carolina

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Felt Shaking

USGS

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Epicenter, August 23 Mainshock

National Earthquake Hazard Map

USGS

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Fault Motion

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Aftershocks at Depth

R. Herrmann

slice along N120˚E

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Louisa County

VA DMME photos