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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 4:56:06 AM (PDT) on Friday, October 12, 2018.
The magnitude 0.5 event occurred 5 km (3 miles) NW of The Geysers, CA.
The hypocentral depth is 2 km ( 1 mile).



Magnitude 0.5 - duration magnitude (Md)
Time Friday, October 12, 2018 at 4:56:06 AM (PDT)
Friday, October 12, 2018 at 11:56:06 (UTC)
Distance from The Geysers, CA - 5 km (3 miles) NW (318 degrees)
Cobb, CA - 6 km (4 miles) W (260 degrees)
Middletown, CA - 17 km (11 miles) WNW (293 degrees)
Cloverdale, CA - 19 km (12 miles) E (88 degrees)
Kelseyville, CA - 19 km (12 miles) SSE (168 degrees)
Coordinates 38 deg. 48.7 min. N (38.812N), 122 deg. 47.7 min. W (122.796W)
Depth 2.27 km (1.4 miles)
Quality Fair
Location Quality Parameters Nst=5, Nph=5, Dmin=0.4 km, Rmss=0.01 sec, Erho=0.98 km, Erzz=1.32 km, Gp=160 degrees
Event ID# nc73096371
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