7 July 2010, 10:05 pm
From USGS: Magnitude 5.4 - SOUTHERN CALIFORNIA 2010 July 07 23:53:33 UTC This event has been reviewed by a seismologist. Magnitude 5.4 Date-Time Wednesday, July 07, 2010 at 23:53:33 UTC Wednesday, July 07, 2010 at 04:53:33 PM at epicenter... Read More »