Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

Southern California Seismic Network: a cooperative project of
U.S. Geological Survey, Pasadena California
Caltech Seismological Laboratory, Pasadena, California


Version #7: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A minor earthquake occurred at 2:51:36 AM (PDT) on Sunday, October 5, 2025.
The magnitude 3.3 event occurred 7 km (4 miles) N of Big Bear City, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 3.3 - local magnitude (Ml)
Time Sunday, October 5, 2025 at 2:51:36 AM (PDT)
Sunday, October 5, 2025 at 9:51:36 (UTC)
Distance from Big Bear City, CA - 7 km (4 miles) N (351 degrees)
Big Bear Lake, CA - 10 km (6 miles) NNE (31 degrees)
Lucerne Valley, CA - 17 km (11 miles) SE (143 degrees)
Running Springs, CA - 26 km (16 miles) ENE (62 degrees)
Lake Arrowhead, CA - 32 km (20 miles) ENE (75 degrees)
Coordinates 34 deg. 19.3 min. N (34.321N), 116 deg. 51.4 min. W (116.856W)
Depth 6.20 km (3.90 miles)
Quality Good
Location Quality Parameters Nst=108, Nph=214, Dmin=4.0 km, Rmss=0.15 sec, Erho=0.09 km, Erzz=0.28 km, Gp=25 degrees
Event ID# ci41102847
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