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 is a computer-generated message. This event has not yet been reviewed by a seismologist.

A micro earthquake occurred at 4:47:52 AM (PDT) on Thursday, September 11, 2025.
The magnitude 1.1 event occurred 30 km (19 miles) E (80 degrees) of Coso Junction, CA.
The hypocentral depth is 3 km ( 2 miles).


Magnitude 1.1 - local magnitude (Ml)
Time Thursday, September 11, 2025 at 4:47:52 AM (PDT)
Thursday, September 11, 2025 at 11:47:52 (UTC)
Distance from Coso Junction, CA - 30 km (19 miles) E (80 degrees)
Little Lake, CA - 31 km (20 miles) ENE (57 degrees)
Olancha, CA - 41 km (25 miles) ESE (121 degrees)
Searles Valley, CA - 41 km (25 miles) NNW (332 degrees)
Trona, CA - 42 km (26 miles) NNW (330 degrees)
Coordinates 36 deg. 5.4 min. N (36.091N), 117 deg. 36.9 min. W (117.614W)
Depth 2.66 km (1.70 miles)
Quality Good
Location Quality Parameters Nst=21, Nph=35, Dmin=11.9 km, Rmss=0.14 sec, Erho=0.22 km, Erzz=0.75 km, Gp=68 degrees
Event ID# ci41288912
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)