u.s. geological survey

January 17, 2016
Small earthquake recorded in Loudoun County

August 8, 2015
2.2 magnitude earthquake rumbles through Maryland

February 27, 2015
2011 Va. earthquake identifies previously unknown fault line
More From u.s. geological survey
July 28, 2014
4.3 magnitude quake hits northern Oklahoma

August 14, 2013
Virus found in local northern snakehead could harm other fish
March 31, 2013