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== PRELIMINARY EARTHQUAKE REPORT ==

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



Version #3: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 8:57:07 AM (PDT) on Tuesday, August 7, 2018.
The magnitude 1.8 event occurred 5 km (3 miles) NW of The Geysers, CA.
The hypocentral depth is 3 km ( 2 miles).



Magnitude 1.8 - duration magnitude (Md)
Time Tuesday, August 7, 2018 at 8:57:07 AM (PDT)
Tuesday, August 7, 2018 at 15:57:07 (UTC)
Distance from The Geysers, CA - 5 km (3 miles) NW (323 degrees)
Cobb, CA - 6 km (4 miles) W (263 degrees)
Middletown, CA - 17 km (11 miles) WNW (295 degrees)
Kelseyville, CA - 18 km (11 miles) SSE (168 degrees)
Cloverdale, CA - 19 km (12 miles) E (87 degrees)
Coordinates 38 deg. 48.9 min. N (38.816N), 122 deg. 47.6 min. W (122.793W)
Depth 3.01 km (1.9 miles)
Quality Excellent
Location Quality Parameters Nst=36, Nph=43, Dmin=0.9 km, Rmss=0.04 sec, Erho=0.14 km, Erzz=0.28 km, Gp=30 degrees
Event ID# nc73065886
Additional Information map || waveforms
  

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