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 1:49:17 PM (PDT) on Wednesday, September 17, 2025.
The magnitude 1.1 event occurred 2 km (1 miles) SW of San Bernardino, CA.
The hypocentral depth is 12 km ( 8 miles).
| Magnitude | 1.1 - local magnitude (Ml) |
| Time | Wednesday, September 17, 2025 at 1:49:17 PM (PDT) Wednesday, September 17, 2025 at 20:49:17 (UTC) |
| Distance from |
San Bernardino, CA - 2 km (1 miles) SW (233 degrees) Colton, CA - 5 km (3 miles) N (7 degrees) Muscoy, CA - 5 km (3 miles) SE (136 degrees) Rialto, CA - 6 km (4 miles) ENE (74 degrees) Loma Linda, CA - 9 km (6 miles) NNW (333 degrees) |
| Coordinates | 34 deg. 7.3 min. N (34.121N), 117 deg. 18.4 min. W (117.306W) |
| Depth | 11.99 km (7.50 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=9, Nph=9, Dmin=15.5 km, Rmss=0.08 sec, Erho=1.06 km, Erzz=1.75 km, Gp=192 degrees |
| Event ID# | ci40440682 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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