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== PRELIMINARY EARTHQUAKE REPORT ==

U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California



Version #0: This report supersedes any earlier reports of this event. This is a computer-generated message. This event has not yet been reviewed by a seismologist.

A micro earthquake occurred at 1:19:05 AM (PDT) on Sunday, May 5, 2013.
The magnitude 1.0 event occurred 9 km (6 miles) ESE of The Geysers, CA.
The hypocentral depth is 1 km ( 1 mile).



Magnitude 1.0 - duration magnitude (Md)
Time Sunday, May 5, 2013 at 1:19:05 AM (PDT)
Sunday, May 5, 2013 at 8:19:05 (UTC)
Distance from The Geysers, CA - 9 km (6 miles) ESE (121 degrees)
Lower Lake, CA - 20 km (12 miles) SSW (208 degrees)
Healdsburg, CA - 21 km (13 miles) NE (39 degrees)
Santa Rosa, CA - 35 km (22 miles) N (360 degrees)
Coordinates 38 deg. 45.3 min. N (38.755N), 122 deg. 42.9 min. W (122.716W)
Depth 1.1 km (0.7 miles)
Quality Good
Location Quality Parameters Nst= 7, Nph= 7, Dmin=2 km, Rmss=0.05 sec, Erho=0.3 km, Erzz=0.8 km, Gp=111.6 degrees
Event ID# nc71985756
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