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== PRELIMINARY EARTHQUAKE REPORT ==
Cooperative New Madrid Seismic Network

Version #A: This report supersedes any earlier reports of this event.
This event has been reviewed by a seismologist.

A micro earthquake occurred at 3:20:12 AM (CDT) on Monday, August 31, 2009 .
The magnitude 0.7 event occurred 3 km (2 miles) SSW of Ridgely, TN .
The hypocentral depth is 7 km ( 4 miles).


Magnitude 0.7 - duration magnitude (Md)
Time Monday, August 31, 2009 at 3:20:12 AM (CDT)
Monday, August 31, 2009 at 8:20:12 (UTC)
Distance from Ridgely, TN - 3 km (2 miles) SSW (212 degrees)
Tiptonville, TN - 15 km (10 miles) S (191 degrees)
Caruthersville, MO - 15 km (9 miles) ENE (68 degrees)
Jackson, TN - 94 km (58 miles) NW (319 degrees)
Coordinates 36 deg. 14.6 min. N (36.243N), 89 deg. 30.2 min. W ( 89.504W)
Depth 6.7 km (4.2 miles)
Quality Good
Location Quality Parameters Nst= 7, Nph= 11, Dmin=2 km, Rmss=0.03 sec, Erho=1.1 km, Erzz=2.3 km, Gp=111.6 degrees
Event ID# nmhnw0831a
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For more information, see http://folkworm.ceri.memphis.edu/

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