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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 4:10:10 AM (CDT) on Saturday, October 24, 2009 .
The magnitude 2.6 event occurred 4 km (3 miles) NNW of Greenbrier, AR .
The hypocentral depth is 0.1 km (0.1 miles).


Magnitude 2.6 - (unknown type)
Time Saturday, October 24, 2009 at 4:10:10 AM (CDT)
Saturday, October 24, 2009 at 9:10:10 (UTC)
Distance from Greenbrier, AR - 4 km (3 miles) NNW (332 degrees)
Wooster, AR - 8 km (5 miles) NNE (31 degrees)
Twin Groves, AR - 8 km (5 miles) S (171 degrees)
North Little Rock, AR - 57 km (35 miles) NNW (347 degrees)
Coordinates 35 deg. 16.0 min. N (35.266N), 92 deg. 24.5 min. W ( 92.409W)
Depth 0.1 km (0.1 miles)
Quality Fair
Location Quality Parameters Nst= 17, Nph= 20, Dmin=55 km, Rmss=0.23 sec, Erho=1.8 km, Erzz=4.1 km, Gp=172.8 degrees
Event ID# nmhnw1024b
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