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 9:36:45 PM (PDT) on Saturday, August 23, 2025.
The magnitude 0.3 event occurred 3 km (2 miles) NNW of The Geysers, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 0.3 - duration magnitude (Md)
Time Saturday, August 23, 2025 at 9:36:45 PM (PDT)
Sunday, August 24, 2025 at 4:36:45 (UTC)
Distance from The Geysers, CA - 3 km (2 miles) NNW (343 degrees)
Cobb, CA - 4 km (3 miles) WSW (242 degrees)
Middletown, CA - 14 km (9 miles) WNW (294 degrees)
Lower Lake, CA - 18 km (11 miles) SW (229 degrees)
Hidden Valley Lake, CA - 18 km (11 miles) W (269 degrees)
Coordinates 38 deg. 48.2 min. N (38.804N), 122 deg. 46.0 min. W (122.767W)
Depth 6.20 km (3.90 miles)
Quality Good
Location Quality Parameters Nst=7, Nph=7, Dmin=2.5 km, Rmss=0.01 sec, Erho=0.82 km, Erzz=2.63000011 km, Gp=135 degrees
Event ID# nc75227927
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