Article Photos: Experts say Oklahoma earthquakes are too powerful to be man-made 15/35

A cookie jar lies in pieces on the kitchen counter as Jesse Richards describes what the earthquake felt like in Sparks, Okla., Sunday, Nov. 6, 2011. 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. (AP Photo/Sue Ogrocki) ORG XMIT: OKSO101