Recent Earthquakes in California and Nevada


== PRELIMINARY EVENT REPORT ==

Southern California Seismic Network: a cooperative project of
U.S. Geological Survey, Pasadena California
Caltech Seismological Laboratory, Pasadena, California


Version #9: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro quarry occurred at 9:43:54 AM (PST) on Friday, December 19, 2025.
The magnitude 1.0 event (a probable quarry explosion) occurred 12 km (7 miles) N of Victorville, CA.
The hypocentral depth is -1 km (-0.50 miles).


Magnitude 1.0 - local magnitude (Ml)
Time Friday, December 19, 2025 at 9:43:54 AM (PST)
Friday, December 19, 2025 at 17:43:54 (UTC)
Distance from Victorville, CA - 12 km (7 miles) N (353 degrees)
Adelanto, CA - 12 km (7 miles) NE (55 degrees)
Mountain View Acres, CA - 17 km (10 miles) NNE (13 degrees)
Apple Valley, CA - 19 km (12 miles) NW (325 degrees)
Hesperia, CA - 24 km (15 miles) N (359 degrees)
Coordinates 34 deg. 38.6 min. N (34.643N), 117 deg. 18.4 min. W (117.306W)
Depth -0.86 km (-0.50 miles)
Quality Fair
Location Quality Parameters Nst=10, Nph=10, Dmin=9.4 km, Rmss=0.15 sec, Erho=0.48 km, Erzz=31.61 km, Gp=94 degrees
Event ID# ci41142951
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)