Earthquake

Peak Ground Acceleration-2002(Requires Adobe©Acrobat)

This map actually shows the TJPDC region as having less of a risk than the 1996 maps. There is still enough risk that a mitgation

strategy be developed.

Peak Ground Acceleration-1996

What is Peak Ground Acceleration

FEMA uses the indicator of PGA (%g) to show the probability of earthquakes in the U.S.

The national map of Peak Ground Acceleration (%g) indicates that the TJPDC area has a PGA rate of 3-4%g. FEMA states that in areas with a PGA of more than 2 %g a risk assessment study should be conducted.

TJPDC Region-1996 Data

Map of specific area of study, shows which portions of region fall into which ranges of Peak Ground Acceleration percentages.

Largest Virginia Earthquakes

USGS Virginia Earthquake Information

 

December 2003 Earthquake near Comlumbia, Virginia
Responses from those who felt it