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 #2: 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 9:07:09 PM (PST) on Saturday, December 13, 2025.
The magnitude 1.1 event occurred 9 km (5 miles) WSW of Corona, CA.
The hypocentral depth is 11 km ( 7 miles).
| Magnitude | 1.1 - local magnitude (Ml) |
| Time | Saturday, December 13, 2025 at 9:07:09 PM (PST) Sunday, December 14, 2025 at 5:07:09 (UTC) |
| Distance from |
Corona, CA - 9 km (5 miles) WSW (245 degrees) Home Gardens, CA - 13 km (8 miles) WSW (249 degrees) Norco, CA - 14 km (9 miles) SW (222 degrees) North Tustin, CA - 15 km (10 miles) ENE (58 degrees) Villa Park, CA - 15 km (9 miles) E (80 degrees) |
| Coordinates | 33 deg. 50.2 min. N (33.837N), 117 deg. 39.1 min. W (117.651W) |
| Depth | 10.55 km (6.60 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=18, Nph=22, Dmin=8.7 km, Rmss=0.189999998 sec, Erho=0.5 km, Erzz=1.20000005 km, Gp=109 degrees |
| Event ID# | ci41351408 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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