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 0:23:53 AM (PDT) on Sunday, July 27, 2025.
The magnitude 1.1 event occurred 5 km (3 miles) ESE of The Geysers, CA.
The hypocentral depth is 2 km ( 1 mile).


Magnitude 1.1 - duration magnitude (Md)
Time Sunday, July 27, 2025 at 0:23:53 AM (PDT)
Sunday, July 27, 2025 at 7:23:53 (UTC)
Distance from The Geysers, CA - 5 km (3 miles) ESE (109 degrees)
Cobb, CA - 7 km (4 miles) SSE (164 degrees)
Middletown, CA - 8 km (5 miles) W (279 degrees)
Hidden Valley Lake, CA - 13 km (8 miles) WSW (248 degrees)
Lower Lake, CA - 18 km (11 miles) SSW (206 degrees)
Coordinates 38 deg. 45.8 min. N (38.763N), 122 deg. 42.1 min. W (122.701W)
Depth 2.22 km (1.40 miles)
Quality Good
Location Quality Parameters Nst=8, Nph=8, Dmin=0.6 km, Rmss=0.02 sec, Erho=0.49 km, Erzz=0.409999996 km, Gp=169 degrees
Event ID# nc75215717
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For more information, see https://earthquake.usgs.gov

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