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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 9:43:53 PM (PST) on Sunday, February 10, 2019.
The magnitude 2.7 event occurred 1 km (1 miles) NE (51 degrees) of The Geysers, CA.
The hypocentral depth is 1 km (0.5 miles).



Magnitude 2.7 - duration magnitude (Md)
Time Sunday, February 10, 2019 at 9:43:53 PM (PST)
Monday, February 11, 2019 at 5:43:53 (UTC)
Distance from The Geysers, CA - 1 km (1 miles) NE (51 degrees)
Cobb, CA - 5 km (3 miles) SSW (205 degrees)
Middletown, CA - 12 km (7 miles) WNW (287 degrees)
Hidden Valley Lake, CA - 16 km (10 miles) W (261 degrees)
Lower Lake, CA - 18 km (11 miles) SW (220 degrees)
Coordinates 38 deg. 47.1 min. N (38.784N), 122 deg. 44.7 min. W (122.745W)
Depth 0.75 km (0.5 miles)
Quality Excellent
Location Quality Parameters Nst=60, Nph=63, Dmin=0.8 km, Rmss=0.06 sec, Erho=0.09 km, Erzz=0.16 km, Gp=34 degrees
Event ID# nc73140685
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