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 4:28:54 AM (PDT) on Tuesday, October 21, 2025.
The magnitude 1.0 event occurred 5 km (3 miles) SSW of Redlands, CA.
The hypocentral depth is 14 km ( 8 miles).
| Magnitude | 1.0 - local magnitude (Ml) |
| Time | Tuesday, October 21, 2025 at 4:28:54 AM (PDT) Tuesday, October 21, 2025 at 11:28:54 (UTC) |
| Distance from |
Redlands, CA - 5 km (3 miles) SSW (211 degrees) Loma Linda, CA - 6 km (4 miles) SE (127 degrees) Mentone, CA - 9 km (6 miles) SW (230 degrees) Grand Terrace, CA - 10 km (6 miles) E (101 degrees) Moreno Valley, CA - 10 km (6 miles) N (9 degrees) |
| Coordinates | 34 deg. 1.0 min. N (34.017N), 117 deg. 12.6 min. W (117.211W) |
| Depth | 13.51 km (8.40 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=59, Nph=107, Dmin=8.4 km, Rmss=0.16 sec, Erho=0.14 km, Erzz=0.33 km, Gp=26 degrees |
| Event ID# | ci41112175 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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