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 11:01:08 AM (PDT) on Friday, September 12, 2025.
The magnitude 1.4 event occurred 11 km (7 miles) E (97 degrees) of Yorba Linda, CA.
The hypocentral depth is 10 km ( 6 miles).


Magnitude 1.4 - local magnitude (Ml)
Time Friday, September 12, 2025 at 11:01:08 AM (PDT)
Friday, September 12, 2025 at 18:01:08 (UTC)
Distance from Yorba Linda, CA - 11 km (7 miles) E (97 degrees)
Corona, CA - 12 km (8 miles) W (273 degrees)
Villa Park, CA - 13 km (8 miles) ENE (57 degrees)
Chino Hills, CA - 14 km (9 miles) SSE (157 degrees)
Orange, CA - 15 km (9 miles) ENE (57 degrees)
Coordinates 33 deg. 52.6 min. N (33.876N), 117 deg. 41.9 min. W (117.699W)
Depth 9.70 km (6.00 miles)
Quality Good
Location Quality Parameters Nst=53, Nph=84, Dmin=4.1 km, Rmss=0.17 sec, Erho=0.21 km, Erzz=0.43 km, Gp=39 degrees
Event ID# ci41290056
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)