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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 9:39:11 PM (PDT) on Monday, September 9, 2019.
The magnitude 1.0 event occurred 7 km (4 miles) NW of The Geysers, CA.
The hypocentral depth is 3 km ( 2 miles).



Magnitude 1.0 - duration magnitude (Md)
Time Monday, September 9, 2019 at 9:39:11 PM (PDT)
Tuesday, September 10, 2019 at 4:39:11 (UTC)
Distance from The Geysers, CA - 7 km (4 miles) NW (315 degrees)
Cobb, CA - 8 km (5 miles) W (269 degrees)
Cloverdale, CA - 18 km (11 miles) E (84 degrees)
Kelseyville, CA - 18 km (11 miles) S (172 degrees)
Middletown, CA - 19 km (12 miles) WNW (294 degrees)
Coordinates 38 deg. 49.3 min. N (38.821N), 122 deg. 48.7 min. W (122.812W)
Depth 3.08 km (1.9 miles)
Quality Excellent
Location Quality Parameters Nst=22, Nph=21, Dmin=0.3 km, Rmss=0.04 sec, Erho=0.26 km, Erzz=0.55 km, Gp=52 degrees
Event ID# nc73268405
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