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 #4: 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 3:33:34 PM (PDT) on Sunday, October 5, 2025.
The magnitude 1.0 event occurred 10 km (6 miles) SSE of Big Bear City, CA.
The hypocentral depth is 7 km ( 4 miles).


Magnitude 1.0 - local magnitude (Ml)
Time Sunday, October 5, 2025 at 3:33:34 PM (PDT)
Sunday, October 5, 2025 at 22:33:34 (UTC)
Distance from Big Bear City, CA - 10 km (6 miles) SSE (168 degrees)
Big Bear Lake, CA - 12 km (7 miles) SE (134 degrees)
Yucaipa, CA - 25 km (16 miles) NE (53 degrees)
Morongo Valley, CA - 26 km (16 miles) WNW (302 degrees)
Running Springs, CA - 27 km (17 miles) E (99 degrees)
Coordinates 34 deg. 10.3 min. N (34.171N), 116 deg. 49.3 min. W (116.822W)
Depth 6.81 km (4.20 miles)
Quality Good
Location Quality Parameters Nst=44, Nph=74, Dmin=13.6 km, Rmss=0.17 sec, Erho=0.15 km, Erzz=0.59 km, Gp=30 degrees
Event ID# ci41103311
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