"Aftershocks of big quake keep Okla. rattled" November 07, 2011|Associated Press
SPARKS, Okla. - The biggest earthquake in Oklahoma history.... the weekend earthquakes were among the strongest yet in a state that has seen a dramatic, unexplained increase in seismic activity....
Related: New Madrid Fault Line Intro
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Also see: 15 Nuclear Reactors on New Madrid Fault Line
East Coast Earthquake
