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 5:01:05 AM (PDT) on Monday, July 28, 2025.
The magnitude 1.2 event occurred 2 km (2 miles) ESE of The Geysers, CA.
The hypocentral depth is 1 km ( 1 mile).


Magnitude 1.2 - duration magnitude (Md)
Time Monday, July 28, 2025 at 5:01:05 AM (PDT)
Monday, July 28, 2025 at 12:01:05 (UTC)
Distance from The Geysers, CA - 2 km (2 miles) ESE (106 degrees)
Cobb, CA - 6 km (4 miles) S (186 degrees)
Middletown, CA - 10 km (6 miles) WNW (282 degrees)
Hidden Valley Lake, CA - 15 km (10 miles) WSW (255 degrees)
Lower Lake, CA - 19 km (12 miles) SW (214 degrees)
Coordinates 38 deg. 46.3 min. N (38.771N), 122 deg. 43.8 min. W (122.729W)
Depth 1.15 km (0.70 miles)
Quality Excellent
Location Quality Parameters Nst=14, Nph=13, Dmin=1.2 km, Rmss=0.03 sec, Erho=0.22 km, Erzz=0.319999993 km, Gp=65 degrees
Event ID# nc75216147
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For more information, see https://earthquake.usgs.gov

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