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 #8: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 7:56:07 PM (PST) on Monday, December 8, 2025.
The magnitude 1.5 event occurred 6 km (4 miles) S of Loma Linda, CA.
The hypocentral depth is 15 km (10 miles).
| Magnitude | 1.5 - local magnitude (Ml) |
| Time | Monday, December 8, 2025 at 7:56:07 PM (PST) Tuesday, December 9, 2025 at 3:56:07 (UTC) |
| Distance from |
Loma Linda, CA - 6 km (4 miles) S (189 degrees) Grand Terrace, CA - 6 km (4 miles) SE (140 degrees) Moreno Valley, CA - 8 km (5 miles) NNW (331 degrees) Colton, CA - 10 km (6 miles) SSE (157 degrees) March Air Reserve Base, CA - 11 km (7 miles) N (356 degrees) |
| Coordinates | 33 deg. 59.5 min. N (33.992N), 117 deg. 16.3 min. W (117.272W) |
| Depth | 15.39 km (9.60 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=69, Nph=121, Dmin=5.5 km, Rmss=0.18 sec, Erho=0.15 km, Erzz=0.25 km, Gp=42 degrees |
| Event ID# | ci41135631 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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