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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 4:45:29 PM (CDT) on Tuesday, June 17, 2008 .
The magnitude 1.8 event occurred 4 km (3 miles) S of Manila, AR .
The hypocentral depth is 4 km ( 2 miles).


Magnitude 1.8 - duration magnitude (Md)
Time Tuesday, June 17, 2008 at 4:45:29 PM (CDT)
Tuesday, June 17, 2008 at 21:45:29 (UTC)
Distance from Manila, AR - 4 km (3 miles) S (172 degrees)
Dell, AR - 11 km (7 miles) W (261 degrees)
Victoria, AR - 13 km (8 miles) NW (315 degrees)
Jonesboro, AR - 49 km (30 miles) E (90 degrees)
Coordinates 35 deg. 50.4 min. N (35.840N), 90 deg. 9.6 min. W ( 90.160W)
Depth 4.1 km (2.5 miles)
Quality Good
Location Quality Parameters Nst= 20, Nph= 32, Dmin=6.5 km, Rmss=0.15 sec, Erho=0.4 km, Erzz=1.8 km, Gp=64.8 degrees
Event ID# nmhwb0817a
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