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 #5: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 7:16:30 AM (PST) on Tuesday, December 9, 2025.
The magnitude 1.6 event occurred 5 km (3 miles) SSW of Redlands, CA.
The hypocentral depth is 14 km ( 9 miles).
| Magnitude | 1.6 - local magnitude (Ml) |
| Time | Tuesday, December 9, 2025 at 7:16:30 AM (PST) Tuesday, December 9, 2025 at 15:16:30 (UTC) |
| Distance from |
Redlands, CA - 5 km (3 miles) SSW (213 degrees) Loma Linda, CA - 6 km (4 miles) SE (124 degrees) Mentone, CA - 9 km (6 miles) SW (231 degrees) Grand Terrace, CA - 10 km (6 miles) E (99 degrees) Colton, CA - 11 km (7 miles) ESE (122 degrees) |
| Coordinates | 34 deg. 1.2 min. N (34.020N), 117 deg. 12.6 min. W (117.211W) |
| Depth | 13.95 km (8.70 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=80, Nph=143, Dmin=8.7 km, Rmss=0.17 sec, Erho=0.12 km, Erzz=0.29 km, Gp=26 degrees |
| Event ID# | ci41135951 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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