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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 8:05:00 PM (PDT) on Monday, September 14, 2020.
The magnitude 1.0 event occurred 6 km (4 miles) NNW of The Geysers, CA.
The hypocentral depth is -1 km (-0.5 miles).



Magnitude 1.0 - duration magnitude (Md)
Time Monday, September 14, 2020 at 8:05:00 PM (PDT)
Tuesday, September 15, 2020 at 3:05:00 (UTC)
Distance from The Geysers, CA - 6 km (4 miles) NNW (329 degrees)
Cobb, CA - 6 km (4 miles) W (276 degrees)
Kelseyville, CA - 17 km (11 miles) SSE (167 degrees)
Middletown, CA - 18 km (11 miles) WNW (298 degrees)
Lower Lake, CA - 18 km (11 miles) WSW (240 degrees)
Coordinates 38 deg. 49.6 min. N (38.827N), 122 deg. 47.7 min. W (122.795W)
Depth -0.76 km (-0.5 miles)
Quality Excellent
Location Quality Parameters Nst=16, Nph=16, Dmin=1.3 km, Rmss=0.03 sec, Erho=0.19 km, Erzz=0.54 km, Gp=77 degrees
Event ID# nc73458051
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