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 9:56:06 PM (PST) on Wednesday, December 31, 2025.
The magnitude 0.5 event occurred 6 km (3 miles) ENE (62 degrees) of Aguanga, CA.
The hypocentral depth is 12 km ( 8 miles).


Magnitude 0.5 - local magnitude (Ml)
Time Wednesday, December 31, 2025 at 9:56:06 PM (PST)
Thursday, January 1, 2026 at 5:56:06 (UTC)
Distance from Aguanga, CA - 6 km (3 miles) ENE (62 degrees)
Palomar Observatory, CA - 13 km (8 miles) NNE (21 degrees)
Anza, CA - 16 km (10 miles) SW (233 degrees)
Lake Henshaw, CA - 25 km (16 miles) N (350 degrees)
Warner Springs, CA - 26 km (16 miles) NW (321 degrees)
Coordinates 33 deg. 28.0 min. N (33.466N), 116 deg. 48.8 min. W (116.813W)
Depth 12.44 km (7.70 miles)
Quality Excellent
Location Quality Parameters Nst=28, Nph=51, Dmin=4.1 km, Rmss=0.12 sec, Erho=0.17 km, Erzz=0.33 km, Gp=80 degrees
Event ID# ci41150519
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)