seismic reflection image along i-64 pratt et al., 1988 coruh et al., 1988
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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
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”
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
Shaking Across USA
C. Bailey & U. South Carolina
Felt Shaking
USGS
Epicenter, August 23 Mainshock
National Earthquake Hazard Map
USGS
Fault Motion
Aftershocks at Depth
R. Herrmann
slice along N120˚E
Louisa County
VA DMME photos
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