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 #4: 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 3:57:13 AM (PDT) on Saturday, October 11, 2025.
The magnitude 0.9 event occurred 4 km (2 miles) N (2 degrees) of Fontana, CA.
The hypocentral depth is 9 km ( 6 miles).
| Magnitude | 0.9 - local magnitude (Ml) |
| Time | Saturday, October 11, 2025 at 3:57:13 AM (PDT) Saturday, October 11, 2025 at 10:57:13 (UTC) |
| Distance from |
Fontana, CA - 4 km (2 miles) N (2 degrees) Rialto, CA - 8 km (5 miles) WNW (288 degrees) Bloomington, CA - 9 km (5 miles) NW (319 degrees) Rancho Cucamonga, CA - 11 km (7 miles) E (86 degrees) Devore, CA - 11 km (7 miles) SSW (206 degrees) |
| Coordinates | 34 deg. 7.8 min. N (34.130N), 117 deg. 27.4 min. W (117.457W) |
| Depth | 9.22 km (5.70 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=55, Nph=90, Dmin=7.7 km, Rmss=0.17 sec, Erho=0.2 km, Erzz=0.32 km, Gp=42 degrees |
| Event ID# | ci41106663 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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