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 11:32:33 PM (PDT) on Saturday, September 20, 2025.
The magnitude 0.8 event occurred 4 km (3 miles) SSE of Mentone, CA.
The hypocentral depth is 5 km ( 3 miles).
| Magnitude | 0.8 - local magnitude (Ml) |
| Time | Saturday, September 20, 2025 at 11:32:33 PM (PDT) Sunday, September 21, 2025 at 6:32:33 (UTC) |
| Distance from |
Mentone, CA - 4 km (3 miles) SSE (157 degrees) Redlands, CA - 7 km (4 miles) ESE (112 degrees) Yucaipa, CA - 7 km (4 miles) W (270 degrees) Calimesa, CA - 8 km (5 miles) NW (311 degrees) Loma Linda, CA - 14 km (8 miles) E (97 degrees) |
| Coordinates | 34 deg. 2.0 min. N (34.033N), 117 deg. 6.9 min. W (117.116W) |
| Depth | 4.60 km (2.90 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=59, Nph=101, Dmin=0.4 km, Rmss=0.21 sec, Erho=0.15 km, Erzz=0.38 km, Gp=23 degrees |
| Event ID# | ci40447394 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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