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 2:27:07 PM (PDT) on Friday, October 24, 2025.
The magnitude 1.2 event occurred 6 km (4 miles) NNW of Mira Loma, CA.
The hypocentral depth is 9 km ( 6 miles).
| Magnitude | 1.2 - local magnitude (Ml) |
| Time | Friday, October 24, 2025 at 2:27:07 PM (PDT) Friday, October 24, 2025 at 21:27:07 (UTC) |
| Distance from |
Mira Loma, CA - 6 km (4 miles) NNW (331 degrees) Glen Avon, CA - 7 km (4 miles) WNW (298 degrees) Ontario, CA - 8 km (5 miles) ESE (102 degrees) Pedley, CA - 10 km (6 miles) NW (317 degrees) Rancho Cucamonga, CA - 10 km (6 miles) SSE (163 degrees) |
| Coordinates | 34 deg. 2.4 min. N (34.039N), 117 deg. 32.9 min. W (117.548W) |
| Depth | 9.49 km (5.90 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=44, Nph=75, Dmin=8.7 km, Rmss=0.16 sec, Erho=0.2 km, Erzz=0.44 km, Gp=66 degrees |
| Event ID# | ci41317800 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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