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 7:48:47 PM (PST) on Monday, November 3, 2025.
The magnitude 0.8 event occurred 7 km (4 miles) NNE (18 degrees) of Fontana, CA.
The hypocentral depth is 10 km ( 6 miles).
| Magnitude | 0.8 - local magnitude (Ml) |
| Time | Monday, November 3, 2025 at 7:48:47 PM (PST) Tuesday, November 4, 2025 at 3:48:47 (UTC) |
| Distance from |
Fontana, CA - 7 km (4 miles) NNE (18 degrees) Rialto, CA - 8 km (5 miles) NW (314 degrees) Devore, CA - 8 km (5 miles) SSW (204 degrees) Muscoy, CA - 8 km (5 miles) W (273 degrees) Bloomington, CA - 10 km (6 miles) NNW (340 degrees) |
| Coordinates | 34 deg. 9.5 min. N (34.158N), 117 deg. 26.1 min. W (117.435W) |
| Depth | 10.05 km (6.20 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=58, Nph=97, Dmin=8.1 km, Rmss=0.19 sec, Erho=0.18 km, Erzz=0.33 km, Gp=49 degrees |
| Event ID# | ci40480794 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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