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 11:19:49 PM (PDT) on Friday, October 31, 2025.
The magnitude 1.2 event occurred 11 km (7 miles) NE (35 degrees) of Yucaipa, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 1.2 - local magnitude (Ml)
Time Friday, October 31, 2025 at 11:19:49 PM (PDT)
Saturday, November 1, 2025 at 6:19:49 (UTC)
Distance from Yucaipa, CA - 11 km (7 miles) NE (35 degrees)
Big Bear Lake, CA - 15 km (10 miles) SSW (202 degrees)
Mentone, CA - 16 km (10 miles) ENE (71 degrees)
Calimesa, CA - 16 km (10 miles) NNE (27 degrees)
Running Springs, CA - 16 km (10 miles) SE (130 degrees)
Coordinates 34 deg. 6.9 min. N (34.115N), 116 deg. 58.4 min. W (116.974W)
Depth 6.16 km (3.80 miles)
Quality Good
Location Quality Parameters Nst=70, Nph=125, Dmin=4.2 km, Rmss=0.16 sec, Erho=0.12 km, Erzz=0.31 km, Gp=23 degrees
Event ID# ci41323720
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