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 11:47:49 PM (PDT) on Sunday, October 26, 2025.
The magnitude 0.8 event occurred 6 km (4 miles) WNW of Mira Loma, CA.
The hypocentral depth is 5 km ( 3 miles).
| Magnitude | 0.8 - local magnitude (Ml) |
| Time | Sunday, October 26, 2025 at 11:47:49 PM (PDT) Monday, October 27, 2025 at 6:47:49 (UTC) |
| Distance from |
Mira Loma, CA - 6 km (4 miles) WNW (287 degrees) Ontario, CA - 7 km (4 miles) SE (137 degrees) Glen Avon, CA - 9 km (5 miles) W (268 degrees) Norco, CA - 9 km (6 miles) NNW (342 degrees) Chino, CA - 10 km (6 miles) E (92 degrees) |
| Coordinates | 34 deg. 0.5 min. N (34.009N), 117 deg. 34.7 min. W (117.579W) |
| Depth | 4.87 km (3.00 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=39, Nph=61, Dmin=1.7 km, Rmss=0.14 sec, Erho=0.16 km, Erzz=0.26 km, Gp=65 degrees |
| Event ID# | ci41320824 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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