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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 9:42:36 AM (PDT) on Thursday, July 30, 2020.
The magnitude 1.5 event occurred 7 km (4 miles) WNW of The Geysers, CA.
The hypocentral depth is 3 km ( 2 miles).



Magnitude 1.5 - duration magnitude (Md)
Time Thursday, July 30, 2020 at 9:42:36 AM (PDT)
Thursday, July 30, 2020 at 16:42:36 (UTC)
Distance from The Geysers, CA - 7 km (4 miles) WNW (303 degrees)
Cobb, CA - 9 km (5 miles) W (261 degrees)
Cloverdale, CA - 17 km (11 miles) E (88 degrees)
Kelseyville, CA - 19 km (12 miles) S (175 degrees)
Middletown, CA - 19 km (12 miles) WNW (290 degrees)
Coordinates 38 deg. 48.6 min. N (38.810N), 122 deg. 49.2 min. W (122.821W)
Depth 2.94 km (1.8 miles)
Quality Excellent
Location Quality Parameters Nst=43, Nph=52, Dmin=1.8 km, Rmss=0.04 sec, Erho=0.15 km, Erzz=0.28 km, Gp=54 degrees
Event ID# nc73435966
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