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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 0:24:09 AM (PDT) on Tuesday, September 15, 2020.
The magnitude 0.8 event occurred 4 km (2 miles) W of Cobb, CA.
The hypocentral depth is 2 km ( 1 mile).



Magnitude 0.8 - duration magnitude (Md)
Time Tuesday, September 15, 2020 at 0:24:09 AM (PDT)
Tuesday, September 15, 2020 at 7:24:09 (UTC)
Distance from Cobb, CA - 4 km (2 miles) W (271 degrees)
The Geysers, CA - 5 km (3 miles) N (351 degrees)
Middletown, CA - 15 km (9 miles) WNW (301 degrees)
Lower Lake, CA - 17 km (10 miles) SW (234 degrees)
Kelseyville, CA - 18 km (11 miles) SSE (160 degrees)
Coordinates 38 deg. 49.4 min. N (38.823N), 122 deg. 46.0 min. W (122.766W)
Depth 2.06 km (1.3 miles)
Quality Excellent
Location Quality Parameters Nst=14, Nph=14, Dmin=0.9 km, Rmss=0.02 sec, Erho=0.24 km, Erzz=0.52 km, Gp=82 degrees
Event ID# nc73458146
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