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== PRELIMINARY EARTHQUAKE REPORT ==

U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California



Version #3: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 2:21:50 AM (PST) on Wednesday, February 14, 2018.
The magnitude 1.9 event occurred 5 km (3 miles) NW of The Geysers, CA.
The hypocentral depth is 3 km ( 2 miles).



Magnitude 1.9 - duration magnitude (Md)
Time Wednesday, February 14, 2018 at 2:21:50 AM (PST)
Wednesday, February 14, 2018 at 10:21:50 (UTC)
Distance from The Geysers, CA - 5 km (3 miles) NW (315 degrees)
Cobb, CA - 6 km (4 miles) WSW (256 degrees)
Middletown, CA - 17 km (10 miles) WNW (292 degrees)
Cloverdale, CA - 19 km (12 miles) E (89 degrees)
Kelseyville, CA - 19 km (12 miles) S (169 degrees)
Coordinates 38 deg. 48.5 min. N (38.808N), 122 deg. 47.7 min. W (122.796W)
Depth 3.06 km (1.9 miles)
Quality Excellent
Location Quality Parameters Nst=52, Nph=57, Dmin=0.0 km, Rmss=0.04 sec, Erho=0.14 km, Erzz=0.2 km, Gp=25 degrees
Event ID# nc72969291
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