While flares block off the circle to Union Station, workers who have been given the "all-clear" return to their buildings on Tuesday, Aug. 23, 2011 following a 5.9 earthquake whose epicenter was in Mineral, Va., east of Charlottesville, but whose effects could be felt up the entire Eastern seaboard, including Washington, D.C. All buildings downtown were evacuated for a couple of hours following the incident. (Barbara L. Salisbury/The Washington Times)