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

A micro quarry occurred at 12:38:48 PM (PDT) on Thursday, October 8, 2026.
The magnitude 1.2 event (a probable quarry explosion) occurred 10 km (6 miles) NNW of Big Bear City, CA.
The hypocentral depth is 1 km ( 1 mile).


Magnitude 1.2 - local magnitude (Ml)
Time Thursday, October 8, 2026 at 12:38:48 PM (PDT)
Thursday, October 8, 2026 at 19:38:48 (UTC)
Distance from Big Bear City, CA - 10 km (6 miles) NNW (340 degrees)
Big Bear Lake, CA - 11 km (7 miles) NNE (14 degrees)
Lucerne Valley, CA - 14 km (8 miles) SE (145 degrees)
Running Springs, CA - 26 km (16 miles) NE (54 degrees)
Lake Arrowhead, CA - 30 km (19 miles) ENE (69 degrees)
Coordinates 34 deg. 20.7 min. N (34.344N), 116 deg. 52.9 min. W (116.882W)
Depth 1.14 km (0.70 miles)
Quality Excellent
Location Quality Parameters Nst=24, Nph=26, Dmin=5.0 km, Rmss=0.09 sec, Erho=0.18 km, Erzz=0.25 km, Gp=50 degrees
Event ID# ci41345175
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)