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 #3: 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 9:23:28 PM (PST) on Monday, December 1, 2025.
The magnitude 1.5 event occurred 2 km (1 miles) NNW of Loma Linda, CA.
The hypocentral depth is 16 km (10 miles).
| Magnitude | 1.5 - local magnitude (Ml) |
| Time | Monday, December 1, 2025 at 9:23:28 PM (PST) Tuesday, December 2, 2025 at 5:23:28 (UTC) |
| Distance from |
Loma Linda, CA - 2 km (1 miles) NNW (339 degrees) Colton, CA - 4 km (3 miles) ESE (105 degrees) Grand Terrace, CA - 5 km (3 miles) NE (51 degrees) San Bernardino, CA - 8 km (5 miles) SSE (163 degrees) Redlands, CA - 8 km (5 miles) W (277 degrees) |
| Coordinates | 34 deg. 3.9 min. N (34.064N), 117 deg. 16.1 min. W (117.269W) |
| Depth | 16.43 km (10.20 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=87, Nph=154, Dmin=4.8 km, Rmss=0.18 sec, Erho=0.13 km, Erzz=0.29 km, Gp=23 degrees |
| Event ID# | ci41130791 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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