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 9:18:57 PM (PDT) on Saturday, September 20, 2025.
The magnitude 0.7 event occurred 6 km (4 miles) SE of Loma Linda, CA.
The hypocentral depth is 14 km ( 8 miles).
| Magnitude | 0.7 - local magnitude (Ml) |
| Time | Saturday, September 20, 2025 at 9:18:57 PM (PDT) Sunday, September 21, 2025 at 4:18:57 (UTC) |
| Distance from |
Loma Linda, CA - 6 km (4 miles) SE (133 degrees) Redlands, CA - 6 km (4 miles) SSW (206 degrees) Moreno Valley, CA - 9 km (6 miles) N (10 degrees) Grand Terrace, CA - 10 km (6 miles) ESE (106 degrees) Mentone, CA - 10 km (6 miles) SW (226 degrees) |
| Coordinates | 34 deg. 0.5 min. N (34.009N), 117 deg. 12.6 min. W (117.210W) |
| Depth | 13.65 km (8.50 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=29, Nph=50, Dmin=9.5 km, Rmss=0.17 sec, Erho=0.21 km, Erzz=0.61 km, Gp=80 degrees |
| Event ID# | ci40447346 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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