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

A micro earthquake occurred at 9:05:43 PM (PDT) on Friday, September 5, 2025.
The magnitude 0.5 event occurred 9 km (6 miles) SW of Corona, CA.
The hypocentral depth is 5 km ( 3 miles).


Magnitude 0.5 - local magnitude (Ml)
Time Friday, September 5, 2025 at 9:05:43 PM (PDT)
Saturday, September 6, 2025 at 4:05:43 (UTC)
Distance from Corona, CA - 9 km (6 miles) SW (229 degrees)
Home Gardens, CA - 13 km (8 miles) WSW (238 degrees)
North Tustin, CA - 15 km (10 miles) ENE (68 degrees)
Foothill Ranch, CA - 15 km (9 miles) N (7 degrees)
Norco, CA - 15 km (9 miles) SW (214 degrees)
Coordinates 33 deg. 49.0 min. N (33.817N), 117 deg. 38.4 min. W (117.640W)
Depth 5.08 km (3.20 miles)
Quality Good
Location Quality Parameters Nst=16, Nph=26, Dmin=3.8 km, Rmss=0.13 sec, Erho=0.24 km, Erzz=0.27 km, Gp=119 degrees
Event ID# ci41284488
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)