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 7:44:55 AM (PST) on Tuesday, December 2, 2025.
The magnitude 1.3 event occurred 4 km (2 miles) N of Mira Loma, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 1.3 - local magnitude (Ml) |
| Time | Tuesday, December 2, 2025 at 7:44:55 AM (PST) Tuesday, December 2, 2025 at 15:44:55 (UTC) |
| Distance from |
Mira Loma, CA - 4 km (2 miles) N (351 degrees) Glen Avon, CA - 4 km (2 miles) WNW (292 degrees) Pedley, CA - 7 km (4 miles) NW (322 degrees) Ontario, CA - 10 km (6 miles) ESE (108 degrees) Fontana, CA - 10 km (6 miles) SW (216 degrees) |
| Coordinates | 34 deg. 1.5 min. N (34.024N), 117 deg. 31.3 min. W (117.522W) |
| Depth | 8.39 km (5.20 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=57, Nph=99, Dmin=6.3 km, Rmss=0.17 sec, Erho=0.16 km, Erzz=0.35 km, Gp=57 degrees |
| Event ID# | ci41130927 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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