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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 6:36:56 PM (PST) on Saturday, February 9, 2019.
The magnitude 0.8 event occurred 3 km (2 miles) ENE (66 degrees) of The Geysers, CA.
The hypocentral depth is 2 km ( 1 mile).



Magnitude 0.8 - duration magnitude (Md)
Time Saturday, February 9, 2019 at 6:36:56 PM (PST)
Sunday, February 10, 2019 at 2:36:56 (UTC)
Distance from The Geysers, CA - 3 km (2 miles) ENE (66 degrees)
Cobb, CA - 4 km (2 miles) S (178 degrees)
Middletown, CA - 10 km (6 miles) WNW (294 degrees)
Hidden Valley Lake, CA - 14 km (9 miles) W (262 degrees)
Lower Lake, CA - 17 km (10 miles) SW (216 degrees)
Coordinates 38 deg. 47.4 min. N (38.790N), 122 deg. 43.3 min. W (122.722W)
Depth 1.73 km (1.1 miles)
Quality Excellent
Location Quality Parameters Nst=19, Nph=21, Dmin=1.5 km, Rmss=0.09 sec, Erho=0.29 km, Erzz=0.51 km, Gp=88 degrees
Event ID# nc73140460
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