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 3:30:04 AM (PDT) on Monday, August 18, 2025.
The magnitude 0.5 event occurred 3 km (2 miles) NNW of The Geysers, CA.
The hypocentral depth is 3 km ( 2 miles).


Magnitude 0.5 - duration magnitude (Md)
Time Monday, August 18, 2025 at 3:30:04 AM (PDT)
Monday, August 18, 2025 at 10:30:04 (UTC)
Distance from The Geysers, CA - 3 km (2 miles) NNW (333 degrees)
Cobb, CA - 5 km (3 miles) WSW (245 degrees)
Middletown, CA - 15 km (9 miles) WNW (293 degrees)
Lower Lake, CA - 18 km (11 miles) SW (230 degrees)
Hidden Valley Lake, CA - 19 km (12 miles) W (269 degrees)
Coordinates 38 deg. 48.2 min. N (38.804N), 122 deg. 46.4 min. W (122.773W)
Depth 2.52 km (1.60 miles)
Quality Good
Location Quality Parameters Nst=6, Nph=6, Dmin=1.2 km, Rmss=0.05 sec, Erho=0.73 km, Erzz=1.96000004 km, Gp=163 degrees
Event ID# nc75225382
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For more information, see https://earthquake.usgs.gov

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