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 #2: 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 4:52:01 PM (PST) on Saturday, December 13, 2025.
The magnitude 1.7 event occurred 4 km (3 miles) SSE of Running Springs, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 1.7 - local magnitude (Ml) |
| Time | Saturday, December 13, 2025 at 4:52:01 PM (PST) Sunday, December 14, 2025 at 0:52:01 (UTC) |
| Distance from |
Running Springs, CA - 4 km (3 miles) SSE (160 degrees) Highland, CA - 12 km (7 miles) ENE (65 degrees) Mentone, CA - 12 km (8 miles) NNE (18 degrees) Lake Arrowhead, CA - 12 km (8 miles) SE (133 degrees) Redlands, CA - 15 km (10 miles) NNE (32 degrees) |
| Coordinates | 34 deg. 10.4 min. N (34.174N), 117 deg. 5.6 min. W (117.094W) |
| Depth | 5.99 km (3.70 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=30, Nph=30, Dmin=14.5 km, Rmss=0.379999995 sec, Erho=1.32 km, Erzz=3.36999989 km, Gp=163 degrees |
| Event ID# | ci41351216 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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