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 #7: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 3:56:02 AM (PDT) on Monday, September 29, 2025.
The magnitude 1.3 event occurred 6 km (4 miles) N (8 degrees) of Fontana, CA.
The hypocentral depth is 12 km ( 8 miles).
| Magnitude | 1.3 - local magnitude (Ml) |
| Time | Monday, September 29, 2025 at 3:56:02 AM (PDT) Monday, September 29, 2025 at 10:56:02 (UTC) |
| Distance from |
Fontana, CA - 6 km (4 miles) N (8 degrees) Rialto, CA - 9 km (5 miles) NW (304 degrees) Devore, CA - 9 km (6 miles) SSW (209 degrees) Bloomington, CA - 10 km (6 miles) NNW (331 degrees) Muscoy, CA - 10 km (6 miles) W (267 degrees) |
| Coordinates | 34 deg. 9.0 min. N (34.150N), 117 deg. 26.9 min. W (117.449W) |
| Depth | 12.34 km (7.70 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=86, Nph=151, Dmin=5.7 km, Rmss=0.18 sec, Erho=0.14 km, Erzz=0.32 km, Gp=31 degrees |
| Event ID# | ci41100471 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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