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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 5:41:23 PM (PDT) on Thursday, October 11, 2018.
The magnitude 0.3 event occurred 5 km (3 miles) WNW of Cobb, CA.
The hypocentral depth is 3 km ( 2 miles).



Magnitude 0.3 - duration magnitude (Md)
Time Thursday, October 11, 2018 at 5:41:23 PM (PDT)
Friday, October 12, 2018 at 0:41:23 (UTC)
Distance from Cobb, CA - 5 km (3 miles) WNW (290 degrees)
The Geysers, CA - 7 km (4 miles) NNW (344 degrees)
Kelseyville, CA - 16 km (10 miles) SSE (161 degrees)
Lower Lake, CA - 17 km (10 miles) WSW (241 degrees)
Middletown, CA - 17 km (11 miles) NW (304 degrees)
Coordinates 38 deg. 50.3 min. N (38.838N), 122 deg. 46.7 min. W (122.778W)
Depth 2.54 km (1.6 miles)
Quality Excellent
Location Quality Parameters Nst=11, Nph=13, Dmin=0.6 km, Rmss=0.03 sec, Erho=0.43 km, Erzz=0.45 km, Gp=82 degrees
Event ID# nc73096221
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