The small, sporadic earthquakes experienced recently in the American Midwest states are actually long-felt aftershocks from the devastating New Madrid earthquakes of 1811 and 1812
Thursday, November 5, 2009
Aftershocks from Last Century
The small, sporadic earthquakes experienced recently in the American Midwest states are actually long-felt aftershocks from the devastating New Madrid earthquakes of 1811 and 1812
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