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 7:04:46 PM (PDT) on Tuesday, August 26, 2025.
The magnitude 1.1 event occurred 3 km (2 miles) ESE of The Geysers, CA.
The hypocentral depth is 1 km ( 1 mile).


Magnitude 1.1 - duration magnitude (Md)
Time Tuesday, August 26, 2025 at 7:04:46 PM (PDT)
Wednesday, August 27, 2025 at 2:04:46 (UTC)
Distance from The Geysers, CA - 3 km (2 miles) ESE (106 degrees)
Cobb, CA - 6 km (4 miles) S (184 degrees)
Middletown, CA - 10 km (6 miles) WNW (282 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 (38.771N), 122 deg. 43.7 min. W (122.728W)
Depth 1.12 km (0.70 miles)
Quality Excellent
Location Quality Parameters Nst=11, Nph=11, Dmin=1.1 km, Rmss=0.03 sec, Erho=0.28 km, Erzz=0.340000004 km, Gp=68 degrees
Event ID# nc75229217
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For more information, see https://earthquake.usgs.gov

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