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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 4:56:39 AM (CDT) on Monday, August 10, 2009 .
The magnitude 1.5 event occurred 11 km (7 miles) NE (49 degrees) of Portageville, MO .
The hypocentral depth is 13 km ( 8 miles).


Magnitude 1.5 - duration magnitude (Md)
Time Monday, August 10, 2009 at 4:56:39 AM (CDT)
Monday, August 10, 2009 at 9:56:39 (UTC)
Distance from Portageville, MO - 11 km (7 miles) NE (49 degrees)
New Madrid, MO - 12 km (8 miles) SSW (213 degrees)
Tiptonville, TN - 17 km (11 miles) NW (317 degrees)
Jackson, TN - 121 km (75 miles) NW (324 degrees)
Coordinates 36 deg. 29.5 min. N (36.492N), 89 deg. 36.2 min. W ( 89.603W)
Depth 12.6 km (7.8 miles)
Quality Excellent
Location Quality Parameters Nst= 16, Nph= 27, Dmin=5 km, Rmss=0.06 sec, Erho=0.7 km, Erzz=1.3 km, Gp=54 degrees
Event ID# nmhnw0810a
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