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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 2:50:09 PM (PDT) on Wednesday, October 10, 2018.
The magnitude 0.5 event occurred 6 km (4 miles) WNW of The Geysers, CA.
The hypocentral depth is 3 km ( 2 miles).



Magnitude 0.5 - duration magnitude (Md)
Time Wednesday, October 10, 2018 at 2:50:09 PM (PDT)
Wednesday, October 10, 2018 at 21:50:09 (UTC)
Distance from The Geysers, CA - 6 km (4 miles) WNW (300 degrees)
Cobb, CA - 8 km (5 miles) WSW (257 degrees)
Cloverdale, CA - 17 km (11 miles) E (90 degrees)
Kelseyville, CA - 19 km (12 miles) S (174 degrees)
Middletown, CA - 19 km (12 miles) WNW (288 degrees)
Coordinates 38 deg. 48.3 min. N (38.805N), 122 deg. 49.1 min. W (122.818W)
Depth 2.67 km (1.7 miles)
Quality Excellent
Location Quality Parameters Nst=29, Nph=30, Dmin=1.1 km, Rmss=0.05 sec, Erho=0.21 km, Erzz=0.36 km, Gp=55 degrees
Event ID# nc73095986
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