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 7:36:07 PM (PST) on Sunday, December 28, 2025.
The magnitude 0.6 event occurred 9 km (6 miles) E (82 degrees) of Palomar Observatory, CA.
The hypocentral depth is 12 km ( 8 miles).


Magnitude 0.6 - local magnitude (Ml)
Time Sunday, December 28, 2025 at 7:36:07 PM (PST)
Monday, December 29, 2025 at 3:36:07 (UTC)
Distance from Palomar Observatory, CA - 9 km (6 miles) E (82 degrees)
Aguanga, CA - 12 km (8 miles) SE (133 degrees)
Lake Henshaw, CA - 14 km (9 miles) N (358 degrees)
Warner Springs, CA - 16 km (10 miles) NW (307 degrees)
Anza, CA - 23 km (14 miles) SSW (203 degrees)
Coordinates 33 deg. 22.0 min. N (33.367N), 116 deg. 46.1 min. W (116.769W)
Depth 12.00 km (7.50 miles)
Quality Good
Location Quality Parameters Nst=56, Nph=97, Dmin=8.9 km, Rmss=0.17 sec, Erho=0.14 km, Erzz=0.46 km, Gp=25 degrees
Event ID# ci41148567
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