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

A micro earthquake occurred at 5:21:08 PM (PST) on Saturday, December 6, 2025.
The magnitude 1.0 event occurred 11 km (7 miles) E (99 degrees) of Palomar Observatory, CA.
The hypocentral depth is 14 km ( 9 miles).


Magnitude 1.0 - local magnitude (Ml)
Time Saturday, December 6, 2025 at 5:21:08 PM (PST)
Sunday, December 7, 2025 at 1:21:08 (UTC)
Distance from Palomar Observatory, CA - 11 km (7 miles) E (99 degrees)
Lake Henshaw, CA - 11 km (7 miles) N (6 degrees)
Warner Springs, CA - 13 km (8 miles) WNW (301 degrees)
Aguanga, CA - 16 km (10 miles) SE (137 degrees)
Anza, CA - 25 km (15 miles) SSW (197 degrees)
Coordinates 33 deg. 20.4 min. N (33.340N), 116 deg. 45.0 min. W (116.750W)
Depth 14.07 km (8.70 miles)
Quality Good
Location Quality Parameters Nst=53, Nph=92, Dmin=10.6 km, Rmss=0.17 sec, Erho=0.15 km, Erzz=0.35 km, Gp=24 degrees
Event ID# ci41134423
Additional Information Map

For more information, see https://earthquake.usgs.gov

[ Index map || Big earthquake list || All earthquake list || Glossary of terms || Top page ]
[ Did you feel it? || ShakeMaps || Relative2Me ]
[ Data Sources ]

Special maps
Long Valley || Los Angeles || San Francisco

Data Sources
US and World - USGS/NEIC = National Earthquake Information Center
Northern California - UCB = University of California, Berkeley
Southern California - Caltech = California Institute of Technology
Nevada - UNR = University of Nevada, Reno
Offshore = West Coast & Alaska Tsunami Warning Center
...all members of the Advanced National Seismic System (ANSS)