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 6:08:42 AM (PST) on Tuesday, December 30, 2025.
The magnitude 1.8 event occurred 3 km (2 miles) S of Redlands, CA.
The hypocentral depth is 15 km (10 miles).


Magnitude 1.8 - local magnitude (Ml)
Time Tuesday, December 30, 2025 at 6:08:42 AM (PST)
Tuesday, December 30, 2025 at 14:08:42 (UTC)
Distance from Redlands, CA - 3 km (2 miles) S (170 degrees)
Mentone, CA - 6 km (4 miles) SW (218 degrees)
Loma Linda, CA - 8 km (5 miles) ESE (108 degrees)
Highland, CA - 12 km (7 miles) SSE (165 degrees)
Moreno Valley, CA - 12 km (8 miles) NNE (23 degrees)
Coordinates 34 deg. 1.6 min. N (34.026N), 117 deg. 10.6 min. W (117.176W)
Depth 15.35 km (9.50 miles)
Quality Good
Location Quality Parameters Nst=88, Nph=156, Dmin=6.0 km, Rmss=0.17 sec, Erho=0.12 km, Erzz=0.22 km, Gp=22 degrees
Event ID# ci41149351
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