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

A micro earthquake occurred at 11:13:21 AM (PST) on Sunday, December 28, 2025.
The magnitude 1.8 event occurred 14 km (9 miles) N of Warner Springs, CA.
The hypocentral depth is 4 km ( 3 miles).


Magnitude 1.8 - local magnitude (Ml)
Time Sunday, December 28, 2025 at 11:13:21 AM (PST)
Sunday, December 28, 2025 at 19:13:21 (UTC)
Distance from Warner Springs, CA - 14 km (9 miles) N (353 degrees)
Anza, CA - 17 km (10 miles) S (173 degrees)
Aguanga, CA - 20 km (12 miles) E (101 degrees)
Palomar Observatory, CA - 20 km (13 miles) ENE (74 degrees)
Lake Henshaw, CA - 21 km (13 miles) NNE (29 degrees)
Coordinates 33 deg. 24.4 min. N (33.407N), 116 deg. 39.2 min. W (116.653W)
Depth 4.22 km (2.60 miles)
Quality Good
Location Quality Parameters Nst=90, Nph=164, Dmin=5.9 km, Rmss=0.22 sec, Erho=0.13 km, Erzz=0.4 km, Gp=21 degrees
Event ID# ci41148311
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