Central Virginia Experiences an Earthquake Every Year or Two Modified after a summary by the USGS Earthquake Hazards Program Virginia seismic zones: Two distinct seismic zones are located in Virginia: The Central Virginia Seismic Zone and the Giles County Seismic Zone. Both of these zones produce recurrent small earthquakes at least every few years.
By David K. Lynch, PhD, author of SanAndreasFault.org. San Andreas Map: The red line on this map follows the surface trace of the San Andreas Fault across California. Areas to the east (right) of the fault are on the North American tectonic plate. Areas to the west (left) of the fault are part of the Pacific tectonic plate.