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 5:26:31 PM (PDT) on Sunday, August 3, 2025.
The magnitude 1.0 event occurred 7 km (4 miles) WNW of Cobb, CA.
The hypocentral depth is 2 km ( 1 mile).


Magnitude 1.0 - duration magnitude (Md)
Time Sunday, August 3, 2025 at 5:26:31 PM (PDT)
Monday, August 4, 2025 at 0:26:31 (UTC)
Distance from Cobb, CA - 7 km (4 miles) WNW (285 degrees)
The Geysers, CA - 8 km (5 miles) NNW (331 degrees)
Kelseyville, CA - 16 km (10 miles) SSE (168 degrees)
Soda Bay, CA - 18 km (11 miles) S (183 degrees)
Lower Lake, CA - 18 km (11 miles) WSW (244 degrees)
Coordinates 38 deg. 50.3 min. N (38.838N), 122 deg. 48.0 min. W (122.800W)
Depth 1.81 km (1.10 miles)
Quality Excellent
Location Quality Parameters Nst=12, Nph=12, Dmin=0.8 km, Rmss=0.01 sec, Erho=0.32 km, Erzz=0.699999988 km, Gp=68 degrees
Event ID# nc75218762
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For more information, see https://earthquake.usgs.gov

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