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.

An earthquake occurred at 10:24:42 AM (PDT) on Wednesday, August 20, 2025.
The magnitude -0.4 event occurred 16 km (10 miles) E (96 degrees) of Coso Junction, CA.
The hypocentral depth is 3 km ( 2 miles).


Magnitude -0.4 - local magnitude (Ml)
Time Wednesday, August 20, 2025 at 10:24:42 AM (PDT)
Wednesday, August 20, 2025 at 17:24:42 (UTC)
Distance from Coso Junction, CA - 16 km (10 miles) E (96 degrees)
Little Lake, CA - 16 km (10 miles) NE (49 degrees)
Olancha, CA - 35 km (22 miles) SE (143 degrees)
Inyokern, CA - 43 km (27 miles) N (5 degrees)
Searles Valley, CA - 44 km (28 miles) NW (311 degrees)
Coordinates 36 deg. 1.8 min. N (36.031N), 117 deg. 46.4 min. W (117.773W)
Depth 2.54 km (1.60 miles)
Quality Good
Location Quality Parameters Nst=6, Nph=8, Dmin=0.9 km, Rmss=0.05 sec, Erho=0.28 km, Erzz=0.16 km, Gp=134 degrees
Event ID# ci37551269
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)