USGS: 10 aftershocks following 5.6 quake in Okla.

November 6, 2011 8:39:46 AM PST
Oklahoma residents more accustomed to tornadoes than earthquakes have been shaken by weekend temblors that cracked buildings, buckled a highway and rattled nerves. One quake late Saturday was the state's strongest ever and jolted a college football stadium 50 miles away.