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 #3: 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 6:45:01 PM (PST) on Wednesday, December 3, 2025.
The magnitude 1.3 event occurred 2 km (1 miles) ESE of Loma Linda, CA.
The hypocentral depth is 14 km ( 9 miles).


Magnitude 1.3 - local magnitude (Ml)
Time Wednesday, December 3, 2025 at 6:45:01 PM (PST)
Thursday, December 4, 2025 at 2:45:01 (UTC)
Distance from Loma Linda, CA - 2 km (1 miles) ESE (103 degrees)
Redlands, CA - 5 km (3 miles) WSW (256 degrees)
Grand Terrace, CA - 7 km (4 miles) E (81 degrees)
Colton, CA - 8 km (5 miles) ESE (116 degrees)
Highland, CA - 10 km (6 miles) SSW (196 degrees)
Coordinates 34 deg. 2.6 min. N (34.044N), 117 deg. 14.3 min. W (117.239W)
Depth 14.48 km (9.00 miles)
Quality Good
Location Quality Parameters Nst=74, Nph=131, Dmin=7.9 km, Rmss=0.17 sec, Erho=0.13 km, Erzz=0.27 km, Gp=30 degrees
Event ID# ci41132119
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