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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 11:11:54 AM (PST) on Thursday, February 13, 2020.
The magnitude 1.0 event occurred 2 km (1 miles) NNE (13 degrees) of The Geysers, CA.
The hypocentral depth is 1 km (0.5 miles).



Magnitude 1.0 - duration magnitude (Md)
Time Thursday, February 13, 2020 at 11:11:54 AM (PST)
Thursday, February 13, 2020 at 19:11:54 (UTC)
Distance from The Geysers, CA - 2 km (1 miles) NNE (13 degrees)
Cobb, CA - 4 km (3 miles) SW (217 degrees)
Middletown, CA - 13 km (8 miles) WNW (290 degrees)
Hidden Valley Lake, CA - 17 km (10 miles) W (264 degrees)
Lower Lake, CA - 18 km (11 miles) SW (223 degrees)
Coordinates 38 deg. 47.5 min. N (38.792N), 122 deg. 45.1 min. W (122.752W)
Depth 0.87 km (0.5 miles)
Quality Excellent
Location Quality Parameters Nst=36, Nph=36, Dmin=1.2 km, Rmss=0.07 sec, Erho=0.17 km, Erzz=0.31 km, Gp=58 degrees
Event ID# nc73340705
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