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

A minor earthquake occurred at 11:24:06 AM (PDT) on Monday, September 29, 2025.
The magnitude 3.1 event occurred 14 km (9 miles) W of Johannesburg, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 3.1 - local magnitude (Ml)
Time Monday, September 29, 2025 at 11:24:06 AM (PDT)
Monday, September 29, 2025 at 18:24:06 (UTC)
Distance from Johannesburg, CA - 14 km (9 miles) W (260 degrees)
California City, CA - 31 km (19 miles) NE (35 degrees)
Ridgecrest, CA - 32 km (20 miles) SSW (199 degrees)
Inyokern, CA - 33 km (21 miles) S (177 degrees)
Boron, CA - 41 km (26 miles) NNW (342 degrees)
Coordinates 35 deg. 21.0 min. N (35.350N), 117 deg. 47.4 min. W (117.791W)
Depth 6.41 km (4.00 miles)
Quality Good
Location Quality Parameters Nst=62, Nph=117, Dmin=10.5 km, Rmss=0.16 sec, Erho=0.13 km, Erzz=0.44 km, Gp=36 degrees
Event ID# ci41100695
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)