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== PRELIMINARY EARTHQUAKE REPORT ==

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



Version #0: This report supersedes any earlier reports of this event. This is a computer-generated message. This event has not yet been reviewed by a seismologist.

A micro earthquake occurred at 7:02:24 PM (PDT) on Monday, September 9, 2019.
The magnitude 1.0 event occurred 5 km (3 miles) NNW of The Geysers, CA.
The hypocentral depth is 12 km ( 7 miles).



Magnitude 1.0 - duration magnitude (Md)
Time Monday, September 9, 2019 at 7:02:24 PM (PDT)
Tuesday, September 10, 2019 at 2:02:24 (UTC)
Distance from The Geysers, CA - 5 km (3 miles) NNW (340 degrees)
Cobb, CA - 5 km (3 miles) W (265 degrees)
Middletown, CA - 16 km (10 miles) WNW (298 degrees)
Lower Lake, CA - 18 km (11 miles) SW (235 degrees)
Kelseyville, CA - 19 km (12 miles) SSE (163 degrees)
Coordinates 38 deg. 49.1 min. N (38.819N), 122 deg. 46.5 min. W (122.775W)
Depth 11.8 km (7.3 miles)
Quality Good
Location Quality Parameters Nst=10, Nph=9, Dmin=1.4 km, Rmss=0.07 sec, Erho=1.2 km, Erzz=2.28 km, Gp=109 degrees
Event ID# nc73268335
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