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

A micro earthquake occurred at 5:04:29 PM (PDT) on Wednesday, October 22, 2025.
The magnitude 1.4 event occurred 11 km (7 miles) NNE (19 degrees) of Running Springs, CA.
The hypocentral depth is 2 km ( 1 mile).


Magnitude 1.4 - local magnitude (Ml)
Time Wednesday, October 22, 2025 at 5:04:29 PM (PDT)
Thursday, October 23, 2025 at 0:04:29 (UTC)
Distance from Running Springs, CA - 11 km (7 miles) NNE (19 degrees)
Lake Arrowhead, CA - 12 km (8 miles) ENE (63 degrees)
Big Bear Lake, CA - 16 km (10 miles) WNW (292 degrees)
Lucerne Valley, CA - 19 km (12 miles) SSW (210 degrees)
Crestline, CA - 21 km (13 miles) ENE (73 degrees)
Coordinates 34 deg. 17.8 min. N (34.297N), 117 deg. 4.3 min. W (117.072W)
Depth 2.02 km (1.30 miles)
Quality Good
Location Quality Parameters Nst=31, Nph=47, Dmin=7.6 km, Rmss=0.19 sec, Erho=0.23 km, Erzz=0.56 km, Gp=64 degrees
Event ID# ci41113055
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