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 is a computer-generated message. This event has not yet been reviewed by a seismologist.
A micro earthquake occurred at 8:13:32 PM (PDT) on Thursday, September 18, 2025.
The magnitude 1.0 event occurred 4 km (2 miles) SSE of Mentone, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 1.0 - local magnitude (Ml) |
| Time | Thursday, September 18, 2025 at 8:13:32 PM (PDT) Friday, September 19, 2025 at 3:13:32 (UTC) |
| Distance from |
Mentone, CA - 4 km (2 miles) SSE (165 degrees) Redlands, CA - 6 km (4 miles) ESE (109 degrees) Yucaipa, CA - 8 km (5 miles) W (275 degrees) Calimesa, CA - 9 km (5 miles) NW (311 degrees) Loma Linda, CA - 13 km (8 miles) E (94 degrees) |
| Coordinates | 34 deg. 2.4 min. N (34.039N), 117 deg. 7.5 min. W (117.124W) |
| Depth | 7.74 km (4.80 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=49, Nph=84, Dmin=1.2 km, Rmss=0.16 sec, Erho=0.14 km, Erzz=0.42 km, Gp=31 degrees |
| Event ID# | ci40445666 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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