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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 8:39:44 AM (PST) on Monday, December 2, 2019.
The magnitude 2.5 event occurred 4 km (2 miles) ESE of The Geysers, CA.
The hypocentral depth is 2 km ( 1 mile).



Magnitude 2.5 - duration magnitude (Md)
Time Monday, December 2, 2019 at 8:39:44 AM (PST)
Monday, December 2, 2019 at 16:39:44 (UTC)
Distance from The Geysers, CA - 4 km (2 miles) ESE (103 degrees)
Cobb, CA - 6 km (4 miles) S (175 degrees)
Middletown, CA - 9 km (6 miles) WNW (283 degrees)
Hidden Valley Lake, CA - 14 km (9 miles) WSW (253 degrees)
Lower Lake, CA - 18 km (11 miles) SSW (211 degrees)
Coordinates 38 deg. 46.2 min. N (38.770N), 122 deg. 43.0 min. W (122.717W)
Depth 1.98 km (1.2 miles)
Quality Excellent
Location Quality Parameters Nst=65, Nph=68, Dmin=1.2 km, Rmss=0.06 sec, Erho=0.11 km, Erzz=0.14 km, Gp=35 degrees
Event ID# nc73310961
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