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 #8: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 4:00:52 AM (PST) on Wednesday, November 12, 2025.
The magnitude 0.3 event occurred 9 km (6 miles) NNW of Fontana, CA.
The hypocentral depth is 1 km ( 1 mile).
| Magnitude | 0.3 - local magnitude (Ml) |
| Time | Wednesday, November 12, 2025 at 4:00:52 AM (PST) Wednesday, November 12, 2025 at 12:00:52 (UTC) |
| Distance from |
Fontana, CA - 9 km (6 miles) NNW (342 degrees) Lytle Creek, CA - 9 km (6 miles) S (174 degrees) Rancho Cucamonga, CA - 10 km (6 miles) NE (55 degrees) Devore, CA - 10 km (6 miles) WSW (237 degrees) Rialto, CA - 13 km (8 miles) NW (305 degrees) |
| Coordinates | 34 deg. 10.5 min. N (34.175N), 117 deg. 29.3 min. W (117.489W) |
| Depth | 1.07 km (0.70 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=7, Nph=13, Dmin=3.8 km, Rmss=0.25 sec, Erho=0.59 km, Erzz=2.35 km, Gp=139 degrees |
| Event ID# | ci40484210 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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