Earthquake Prevention and Retrofitting   [open pdf - 21KB]

"On August 23, 2011, at 1:51 p.m., a magnitude 5.8 earthquake occurred in central Virginia. The epicenter was 5 miles south/southwest of the town of Mineral, Virginia, and 38 miles northwest of Richmond, Virginia. This was the largest earthquake east of the Rocky Mountains since a magnitude 5.8 event in 1944 on the New York/Ontario border and the largest earthquake in Virginia since a magnitude 5.9 event in 1897 in Giles County in western Virginia."