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 10:25:31 AM (PDT) on Thursday, September 4, 2025.
The magnitude 0.9 event occurred 4 km (2 miles) SE of Loma Linda, CA.
The hypocentral depth is 17 km (11 miles).
| Magnitude | 0.9 - local magnitude (Ml) |
| Time | Thursday, September 4, 2025 at 10:25:31 AM (PDT) Thursday, September 4, 2025 at 17:25:31 (UTC) |
| Distance from |
Loma Linda, CA - 4 km (2 miles) SE (139 degrees) Redlands, CA - 6 km (4 miles) SW (231 degrees) Grand Terrace, CA - 8 km (5 miles) E (100 degrees) Colton, CA - 9 km (6 miles) SE (128 degrees) Moreno Valley, CA - 11 km (7 miles) N (357 degrees) |
| Coordinates | 34 deg. 1.3 min. N (34.022N), 117 deg. 14.0 min. W (117.233W) |
| Depth | 17.01 km (10.60 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=31, Nph=49, Dmin=10.2 km, Rmss=0.17 sec, Erho=0.25 km, Erzz=0.54 km, Gp=44 degrees |
| Event ID# | ci41283312 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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