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

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

A micro earthquake occurred at 8:51:29 PM (CDT) on Friday, October 30, 2009 .
The magnitude 2.4 event occurred 4 km (2 miles) NW of Greenbrier, AR .
The hypocentral depth is 0.1 km (0.1 miles).


Magnitude 2.4 - (unknown type)
Time Friday, October 30, 2009 at 8:51:29 PM (CDT)
Saturday, October 31, 2009 at 1:51:29 (UTC)
Distance from Greenbrier, AR - 4 km (2 miles) NW (312 degrees)
Wooster, AR - 7 km (4 miles) NNE (29 degrees)
Twin Groves, AR - 9 km (5 miles) S (178 degrees)
North Little Rock, AR - 56 km (35 miles) NNW (346 degrees)
Coordinates 35 deg. 15.4 min. N (35.256N), 92 deg. 25.1 min. W ( 92.419W)
Depth 0.1 km (0.1 miles)
Quality Fair
Location Quality Parameters Nst= 11, Nph= 18, Dmin=54 km, Rmss=0.18 sec, Erho=1.7 km, Erzz=3.1 km, Gp=122.4 degrees
Event ID# nmhnw1031a
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For more information, see http://folkworm.ceri.memphis.edu/

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