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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 3:28:59 PM (CDT) on Sunday, July 12, 2009 .
The magnitude 1.9 event occurred 18 km (11 miles) S of Hayti, MO .
The hypocentral depth is 8 km ( 5 miles).


Magnitude 1.9 - duration magnitude (Md)
Time Sunday, July 12, 2009 at 3:28:59 PM (CDT)
Sunday, July 12, 2009 at 20:28:59 (UTC)
Distance from Hayti, MO - 18 km (11 miles) S (191 degrees)
Caruthersville, MO - 18 km (11 miles) SW (222 degrees)
Blytheville, AR - 20 km (12 miles) NE (36 degrees)
Jonesboro, AR - 86 km (54 miles) ENE (73 degrees)
Coordinates 36 deg. 4.3 min. N (36.071N), 89 deg. 47.4 min. W ( 89.790W)
Depth 8.3 km (5.2 miles)
Quality Excellent
Location Quality Parameters Nst= 20, Nph= 32, Dmin=8 km, Rmss=0.06 sec, Erho=0.5 km, Erzz=1.1 km, Gp=82.8 degrees
Event ID# nmhnw0712a
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