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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 9:06:40 AM (PDT) on Thursday, July 12, 2018.
The magnitude 1.0 event occurred 1 km (1 miles) NNE (29 degrees) of The Geysers, CA.
The hypocentral depth is 0.19 km (0.1 miles).



Magnitude 1.0 - duration magnitude (Md)
Time Thursday, July 12, 2018 at 9:06:40 AM (PDT)
Thursday, July 12, 2018 at 16:06:40 (UTC)
Distance from The Geysers, CA - 1 km (1 miles) NNE (29 degrees)
Cobb, CA - 5 km (3 miles) SSW (210 degrees)
Middletown, CA - 12 km (8 miles) WNW (288 degrees)
Hidden Valley Lake, CA - 17 km (10 miles) W (262 degrees)
Lower Lake, CA - 18 km (11 miles) SW (221 degrees)
Coordinates 38 deg. 47.2 min. N (38.786N), 122 deg. 45.0 min. W (122.750W)
Depth 0.19 km (0.1 miles)
Quality Good
Location Quality Parameters Nst=12, Nph=11, Dmin=1.2 km, Rmss=0.03 sec, Erho=0.22 km, Erzz=0.58 km, Gp=104 degrees
Event ID# nc73043911
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