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== PRELIMINARY EARTHQUAKE REPORT ==

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



Version #2: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 11:29:49 PM (PDT) on Thursday, October 11, 2018.
The magnitude 1.3 event occurred 6 km (4 miles) NNW of The Geysers, CA.
The hypocentral depth is 1 km ( 1 mile).



Magnitude 1.3 - duration magnitude (Md)
Time Thursday, October 11, 2018 at 11:29:49 PM (PDT)
Friday, October 12, 2018 at 6:29:49 (UTC)
Distance from The Geysers, CA - 6 km (4 miles) NNW (331 degrees)
Cobb, CA - 6 km (4 miles) W (275 degrees)
Kelseyville, CA - 17 km (11 miles) SSE (166 degrees)
Middletown, CA - 17 km (11 miles) WNW (298 degrees)
Lower Lake, CA - 18 km (11 miles) WSW (239 degrees)
Coordinates 38 deg. 49.6 min. N (38.827N), 122 deg. 47.5 min. W (122.791W)
Depth 1.34 km (0.8 miles)
Quality Excellent
Location Quality Parameters Nst=34, Nph=39, Dmin=1.3 km, Rmss=0.03 sec, Erho=0.15 km, Erzz=0.18 km, Gp=33 degrees
Event ID# nc73096296
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