Article Photos: Oklahoma's seismic activity may not be over, experts say 14/40

Jess Burrow, left, and James Patterson, look over the damage caused outside the home of Joe and Mary Reneau when their chimney was toppled by Saturday's earthquake, in Sparks, Okla., Sunday, Nov. 6, 2011. (AP Photo/Sue Ogrocki) ORG XMIT: OKSO108