Recent Earthquakes in California and Nevada


== 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 8:35:29 PM (PDT) on Thursday, August 21, 2025.
The magnitude 0.7 event occurred 6 km (4 miles) WNW of The Geysers, CA.
The hypocentral depth is 3 km ( 2 miles).


Magnitude 0.7 - duration magnitude (Md)
Time Thursday, August 21, 2025 at 8:35:29 PM (PDT)
Friday, August 22, 2025 at 3:35:29 (UTC)
Distance from The Geysers, CA - 6 km (4 miles) WNW (295 degrees)
Cobb, CA - 8 km (5 miles) WSW (252 degrees)
Cloverdale, CA - 17 km (11 miles) E (92 degrees)
Middletown, CA - 18 km (11 miles) WNW (287 degrees)
Kelseyville, CA - 20 km (12 miles) S (174 degrees)
Coordinates 38 deg. 47.9 min. N (38.799N), 122 deg. 49.0 min. W (122.816W)
Depth 3.25 km (2.00 miles)
Quality Excellent
Location Quality Parameters Nst=11, Nph=11, Dmin=1.6 km, Rmss=0.02 sec, Erho=0.46 km, Erzz=1.09000003 km, Gp=83 degrees
Event ID# nc75227002
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