People check their phones as they wait outside of an office building after an earthquake was felt in Baltimore, Tuesday, Aug. 23, 2011. Downtown office buildings were cleared and workers were waiting ... more 
People check their phones as they wait outside of an office building after an earthquake was felt in Baltimore, Tuesday, Aug. 23, 2011. Downtown office buildings were cleared and workers were waiting for clearance to re-enter. (AP Photo/Patrick Semansky) less 
1 / 1
Associated Press | Photo By Patrick Semansky
Tue, Aug 23, 2011 2:43 PM EDT