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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 10:31:27 PM (CDT) on Tuesday, September 8, 2009 .
The magnitude 1.6 event occurred 7 km (4 miles) SW of Tiptonville, TN .
The hypocentral depth is 9 km ( 6 miles).


Magnitude 1.6 - duration magnitude (Md)
Time Tuesday, September 8, 2009 at 10:31:27 PM (CDT)
Wednesday, September 9, 2009 at 3:31:27 (UTC)
Distance from Tiptonville, TN - 7 km (4 miles) SW (217 degrees)
Ridgely, TN - 8 km (5 miles) NNW (342 degrees)
Samburg, TN - 15 km (10 miles) WSW (249 degrees)
Jackson, TN - 102 km (63 miles) NW (322 degrees)
Coordinates 36 deg. 19.8 min. N (36.331N), 89 deg. 30.9 min. W ( 89.516W)
Depth 9.2 km (5.7 miles)
Quality Excellent
Location Quality Parameters Nst= 29, Nph= 51, Dmin=2 km, Rmss=0.04 sec, Erho=0.4 km, Erzz=0.7 km, Gp=36 degrees
Event ID# nmhnw0909b
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