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 #3: 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 12:19:36 PM (PST) on Tuesday, December 2, 2025.
The magnitude 0.5 event occurred 7 km (4 miles) NNE (32 degrees) of Fontana, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 0.5 - local magnitude (Ml) |
| Time | Tuesday, December 2, 2025 at 12:19:36 PM (PST) Tuesday, December 2, 2025 at 20:19:36 (UTC) |
| Distance from |
Fontana, CA - 7 km (4 miles) NNE (32 degrees) Rialto, CA - 7 km (4 miles) NW (315 degrees) Muscoy, CA - 7 km (4 miles) W (265 degrees) Devore, CA - 8 km (5 miles) SSW (192 degrees) Bloomington, CA - 9 km (6 miles) NNW (345 degrees) |
| Coordinates | 34 deg. 8.9 min. N (34.148N), 117 deg. 25.2 min. W (117.421W) |
| Depth | 6.41 km (4.00 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=36, Nph=56, Dmin=9.8 km, Rmss=0.15 sec, Erho=0.21 km, Erzz=0.43 km, Gp=73 degrees |
| Event ID# | ci41131095 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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