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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 1:30:11 AM (PDT) on Thursday, October 15, 2020.
The magnitude 0.9 event occurred 2 km (1 miles) ESE of The Geysers, CA.
The hypocentral depth is 1 km ( 1 mile).



Magnitude 0.9 - duration magnitude (Md)
Time Thursday, October 15, 2020 at 1:30:11 AM (PDT)
Thursday, October 15, 2020 at 8:30:11 (UTC)
Distance from The Geysers, CA - 2 km (1 miles) ESE (121 degrees)
Cobb, CA - 6 km (4 miles) SSW (192 degrees)
Middletown, CA - 11 km (7 miles) W (280 degrees)
Hidden Valley Lake, CA - 16 km (10 miles) WSW (254 degrees)
Lower Lake, CA - 19 km (12 miles) SW (215 degrees)
Coordinates 38 deg. 46.1 min. N (38.768N), 122 deg. 44.2 min. W (122.737W)
Depth 1.02 km (0.6 miles)
Quality Good
Location Quality Parameters Nst=9, Nph=8, Dmin=1.3 km, Rmss=0.02 sec, Erho=0.76 km, Erzz=1.19 km, Gp=112 degrees
Event ID# nc73471026
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