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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 9:44:03 PM (PDT) on Thursday, October 11, 2018.
The magnitude 0.5 event occurred 5 km (3 miles) NW of The Geysers, CA.
The hypocentral depth is 2 km ( 1 mile).



Magnitude 0.5 - duration magnitude (Md)
Time Thursday, October 11, 2018 at 9:44:03 PM (PDT)
Friday, October 12, 2018 at 4:44:03 (UTC)
Distance from The Geysers, CA - 5 km (3 miles) NW (315 degrees)
Cobb, CA - 7 km (4 miles) WSW (258 degrees)
Middletown, CA - 17 km (11 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. 48.6 min. N (38.810N), 122 deg. 47.9 min. W (122.798W)
Depth 1.76 km (1.1 miles)
Quality Fair
Location Quality Parameters Nst=6, Nph=6, Dmin=0.3 km, Rmss=0.01 sec, Erho=1.09 km, Erzz=1.02 km, Gp=139 degrees
Event ID# nc73096256
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