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 8:36:00 PM (PDT) on Thursday, October 16, 2025.
The magnitude 1.0 event occurred 3 km (2 miles) E of Loma Linda, CA.
The hypocentral depth is 7 km ( 4 miles).
| Magnitude | 1.0 - local magnitude (Ml) |
| Time | Thursday, October 16, 2025 at 8:36:00 PM (PDT) Friday, October 17, 2025 at 3:36:00 (UTC) |
| Distance from |
Loma Linda, CA - 3 km (2 miles) E (100 degrees) Redlands, CA - 5 km (3 miles) WSW (253 degrees) Grand Terrace, CA - 8 km (5 miles) E (82 degrees) Colton, CA - 8 km (5 miles) ESE (113 degrees) Mentone, CA - 9 km (6 miles) WSW (252 degrees) |
| Coordinates | 34 deg. 2.6 min. N (34.044N), 117 deg. 13.8 min. W (117.230W) |
| Depth | 6.77 km (4.20 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=51, Nph=89, Dmin=8.4 km, Rmss=0.17 sec, Erho=0.15 km, Erzz=0.43 km, Gp=46 degrees |
| Event ID# | ci41109775 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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