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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 4:36:49 AM (PDT) on Wednesday, October 10, 2018.
The magnitude 0.4 event occurred 9 km (5 miles) WNW of Cobb, CA.
The hypocentral depth is 2 km ( 1 mile).



Magnitude 0.4 - duration magnitude (Md)
Time Wednesday, October 10, 2018 at 4:36:49 AM (PDT)
Wednesday, October 10, 2018 at 11:36:49 (UTC)
Distance from Cobb, CA - 9 km (5 miles) WNW (285 degrees)
The Geysers, CA - 9 km (6 miles) NW (323 degrees)
Kelseyville, CA - 15 km (9 miles) S (174 degrees)
Cloverdale, CA - 18 km (11 miles) ENE (77 degrees)
Soda Bay, CA - 18 km (11 miles) S (189 degrees)
Coordinates 38 deg. 50.5 min. N (38.842N), 122 deg. 49.2 min. W (122.820W)
Depth 1.5 km (0.9 miles)
Quality Excellent
Location Quality Parameters Nst=15, Nph=16, Dmin=1.4 km, Rmss=0.04 sec, Erho=0.4 km, Erzz=0.27 km, Gp=76 degrees
Event ID# nc71109684
Additional Information map || waveforms
  

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