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 8:07:55 PM (PDT) on Monday, October 20, 2025.
The magnitude 1.0 event occurred 5 km (3 miles) ENE (77 degrees) of Calimesa, CA.
The hypocentral depth is 10 km ( 6 miles).
| Magnitude | 1.0 - local magnitude (Ml) |
| Time | Monday, October 20, 2025 at 8:07:55 PM (PDT) Tuesday, October 21, 2025 at 3:07:55 (UTC) |
| Distance from |
Calimesa, CA - 5 km (3 miles) ENE (77 degrees) Yucaipa, CA - 6 km (4 miles) SE (131 degrees) Beaumont, CA - 8 km (5 miles) NNW (347 degrees) Banning, CA - 14 km (9 miles) NW (307 degrees) Mentone, CA - 15 km (9 miles) ESE (122 degrees) |
| Coordinates | 33 deg. 60.0 min. N (33.999N), 116 deg. 59.7 min. W (116.996W) |
| Depth | 9.70 km (6.00 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=59, Nph=104, Dmin=11.5 km, Rmss=0.18 sec, Erho=0.13 km, Erzz=0.43 km, Gp=27 degrees |
| Event ID# | ci41112063 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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