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

A micro earthquake occurred at 10:15:54 PM (PDT) on Tuesday, September 23, 2025.
The magnitude 0.8 event occurred 10 km (6 miles) SE of Winchester, CA.
The hypocentral depth is 13 km ( 8 miles).


Magnitude 0.8 - local magnitude (Ml)
Time Tuesday, September 23, 2025 at 10:15:54 PM (PDT)
Wednesday, September 24, 2025 at 5:15:54 (UTC)
Distance from Winchester, CA - 10 km (6 miles) SE (137 degrees)
Green Acres, CA - 12 km (7 miles) SSE (151 degrees)
Hemet, CA - 12 km (8 miles) SSW (199 degrees)
Menifee, CA - 15 km (10 miles) SE (128 degrees)
Murrieta Hot Springs, CA - 16 km (10 miles) NE (55 degrees)
Coordinates 33 deg. 38.6 min. N (33.643N), 117 deg. 0.8 min. W (117.014W)
Depth 12.61 km (7.80 miles)
Quality Good
Location Quality Parameters Nst=44, Nph=75, Dmin=0.9 km, Rmss=0.17 sec, Erho=0.2 km, Erzz=0.36 km, Gp=51 degrees
Event ID# ci40449490
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)