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 4:33:51 AM (PST) on Friday, December 19, 2025.
The magnitude 1.1 event occurred 3 km (2 miles) SE of Loma Linda, CA.
The hypocentral depth is 15 km (10 miles).
| Magnitude | 1.1 - local magnitude (Ml) |
| Time | Friday, December 19, 2025 at 4:33:51 AM (PST) Friday, December 19, 2025 at 12:33:51 (UTC) |
| Distance from |
Loma Linda, CA - 3 km (2 miles) SE (130 degrees) Redlands, CA - 6 km (3 miles) WSW (240 degrees) Grand Terrace, CA - 7 km (4 miles) E (93 degrees) Colton, CA - 9 km (5 miles) SE (124 degrees) Mentone, CA - 10 km (6 miles) WSW (245 degrees) |
| Coordinates | 34 deg. 1.8 min. N (34.030N), 117 deg. 14.1 min. W (117.235W) |
| Depth | 15.49 km (9.60 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=63, Nph=109, Dmin=10.6 km, Rmss=0.17 sec, Erho=0.16 km, Erzz=0.25 km, Gp=46 degrees |
| Event ID# | ci41142695 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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