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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 6:36:14 PM (PST) on Monday, February 10, 2020.
The magnitude 0.3 event occurred 8 km (5 miles) WNW of The Geysers, CA.
The hypocentral depth is 1 km ( 1 mile).



Magnitude 0.3 - duration magnitude (Md)
Time Monday, February 10, 2020 at 6:36:14 PM (PST)
Tuesday, February 11, 2020 at 2:36:14 (UTC)
Distance from The Geysers, CA - 8 km (5 miles) WNW (302 degrees)
Cobb, CA - 10 km (6 miles) W (265 degrees)
Cloverdale, CA - 16 km (10 miles) E (86 degrees)
Kelseyville, CA - 18 km (11 miles) S (178 degrees)
Middletown, CA - 20 km (12 miles) WNW (290 degrees)
Coordinates 38 deg. 48.9 min. N (38.814N), 122 deg. 49.9 min. W (122.832W)
Depth 1.22 km (0.8 miles)
Quality Good
Location Quality Parameters Nst=9, Nph=10, Dmin=0.6 km, Rmss=0.02 sec, Erho=0.32 km, Erzz=0.71 km, Gp=93 degrees
Event ID# nc73338136
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