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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 4:28:05 PM (PDT) on Wednesday, October 2, 2013.
The magnitude 1.8 event occurred 11 km (7 miles) ESE of The Geysers, CA.
The hypocentral depth is 1 km ( 1 mile).



Magnitude 1.8 - duration magnitude (Md)
Time Wednesday, October 2, 2013 at 4:28:05 PM (PDT)
Wednesday, October 2, 2013 at 23:28:05 (UTC)
Distance from The Geysers, CA - 11 km (7 miles) ESE (115 degrees)
Lower Lake, CA - 18 km (11 miles) SSW (204 degrees)
Healdsburg, CA - 22 km (14 miles) NE (42 degrees)
Santa Rosa, CA - 35 km (22 miles) N (2 degrees)
Coordinates 38 deg. 45.5 min. N (38.758N), 122 deg. 41.8 min. W (122.696W)
Depth 0.9 km (0.6 miles)
Quality Fair
Location Quality Parameters Nst= 5, Nph= 5, Dmin=1 km, Rmss=0.02 sec, Erho=1.1 km, Erzz=2 km, Gp=183.6 degrees
Event ID# nc72080316
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