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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 3:32:31 AM (PDT) on Friday, October 12, 2018.
The magnitude 1.0 event occurred 3 km (2 miles) NW of The Geysers, CA.
The hypocentral depth is 3 km ( 2 miles).



Magnitude 1.0 - duration magnitude (Md)
Time Friday, October 12, 2018 at 3:32:31 AM (PDT)
Friday, October 12, 2018 at 10:32:31 (UTC)
Distance from The Geysers, CA - 3 km (2 miles) NW (312 degrees)
Cobb, CA - 6 km (4 miles) WSW (239 degrees)
Middletown, CA - 15 km (9 miles) WNW (288 degrees)
Hidden Valley Lake, CA - 19 km (12 miles) W (266 degrees)
Lower Lake, CA - 20 km (12 miles) SW (229 degrees)
Coordinates 38 deg. 47.7 min. N (38.795N), 122 deg. 46.9 min. W (122.782W)
Depth 3.21 km (2.0 miles)
Quality Excellent
Location Quality Parameters Nst=11, Nph=11, Dmin=0.6 km, Rmss=0.01 sec, Erho=0.71 km, Erzz=1.24 km, Gp=84 degrees
Event ID# nc73096361
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