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 event has been reviewed by a seismologist.
A micro earthquake occurred at 6:59:57 PM (PST) on Monday, December 1, 2025.
The magnitude 1.3 event occurred 3 km (2 miles) SE of Loma Linda, CA.
The hypocentral depth is 16 km (10 miles).
| Magnitude | 1.3 - local magnitude (Ml) |
| Time | Monday, December 1, 2025 at 6:59:57 PM (PST) Tuesday, December 2, 2025 at 2:59:57 (UTC) |
| Distance from |
Loma Linda, CA - 3 km (2 miles) SE (132 degrees) Redlands, CA - 6 km (4 miles) WSW (242 degrees) Grand Terrace, CA - 7 km (4 miles) E (93 degrees) Colton, CA - 8 km (5 miles) SE (124 degrees) Mentone, CA - 10 km (6 miles) WSW (245 degrees) |
| Coordinates | 34 deg. 1.8 min. N (34.031N), 117 deg. 14.3 min. W (117.238W) |
| Depth | 15.68 km (9.70 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=73, Nph=122, Dmin=9.3 km, Rmss=0.18 sec, Erho=0.15 km, Erzz=0.31 km, Gp=20 degrees |
| Event ID# | ci41130719 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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