Recent Earthquakes in California and Nevada


== 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 10:29:06 AM (PDT) on Wednesday, July 16, 2025.
The magnitude 0.4 event occurred 3 km (2 miles) ESE of The Geysers, CA.
The hypocentral depth is 1 km (0.50 miles).


Magnitude 0.4 - duration magnitude (Md)
Time Wednesday, July 16, 2025 at 10:29:06 AM (PDT)
Wednesday, July 16, 2025 at 17:29:06 (UTC)
Distance from The Geysers, CA - 3 km (2 miles) ESE (108 degrees)
Cobb, CA - 6 km (4 miles) S (183 degrees)
Middletown, CA - 10 km (6 miles) W (281 degrees)
Hidden Valley Lake, CA - 15 km (9 miles) WSW (254 degrees)
Lower Lake, CA - 19 km (12 miles) SSW (213 degrees)
Coordinates 38 deg. 46.2 min. N (38.770N), 122 deg. 43.6 min. W (122.727W)
Depth 0.82 km (0.50 miles)
Quality Good
Location Quality Parameters Nst=6, Nph=8, Dmin=1.0 km, Rmss=0.01 sec, Erho=0.28 km, Erzz=0.59 km, Gp=123 degrees
Event ID# nc75210832
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