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Re: seismic forces

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On Nov 24, 2008, at 7:24 PM, Harold Sprague wrote:

between December 1811 and May 1812, there were 3 earthquakes that were larger than the 1906 San Francisco earthquake, and there were about 2,000 event recorded in Nashville, TN which is quite a distance from the perceived epicenter. There was damage recorded in Charleston and church bells rang in Boston. Now THAT is an earthquake.
Damn right. It changed the course of the Mississippi. In 1812 there weren't many real cities west of the Appalachian mountains--no Nashville, no Memphis, no Chicago, no Kansas City. The next New Madrid quake is likely to spoil your whole weekend.

Christopher Wright P.E. |"They couldn't hit an elephant at
chrisw(--nospam--at)   | this distance" (last words of Gen.
.......................................| John Sedgwick, Spotsylvania 1864)

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