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 #6: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 12:27:23 PM (PDT) on Monday, July 21, 2025.
The magnitude 1.0 event occurred 4 km (3 miles) SW of Redlands, CA.
The hypocentral depth is 9 km ( 5 miles).
| Magnitude | 1.0 - local magnitude (Ml) |
| Time | Monday, July 21, 2025 at 12:27:23 PM (PDT) Monday, July 21, 2025 at 19:27:23 (UTC) |
| Distance from |
Redlands, CA - 4 km (3 miles) SW (215 degrees) Loma Linda, CA - 5 km (3 miles) ESE (120 degrees) Mentone, CA - 9 km (5 miles) SW (234 degrees) Grand Terrace, CA - 10 km (6 miles) E (97 degrees) Colton, CA - 11 km (7 miles) ESE (120 degrees) |
| Coordinates | 34 deg. 1.4 min. N (34.024N), 117 deg. 12.6 min. W (117.210W) |
| Depth | 8.77 km (5.40 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=28, Nph=48, Dmin=9.1 km, Rmss=0.15 sec, Erho=0.19 km, Erzz=0.49 km, Gp=40 degrees |
| Event ID# | ci41027855 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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