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 6:15:34 PM (PDT) on Saturday, September 6, 2025.
The magnitude 1.4 event occurred 2 km (1 miles) SSW of San Dimas, CA.
The hypocentral depth is 14 km ( 8 miles).
| Magnitude | 1.4 - local magnitude (Ml) |
| Time | Saturday, September 6, 2025 at 6:15:34 PM (PDT) Sunday, September 7, 2025 at 1:15:34 (UTC) |
| Distance from |
San Dimas, CA - 2 km (1 miles) SSW (202 degrees) Charter Oak, CA - 3 km (2 miles) ESE (118 degrees) La Verne, CA - 5 km (3 miles) WSW (254 degrees) Pomona, CA - 6 km (4 miles) WNW (300 degrees) Covina, CA - 7 km (4 miles) E (90 degrees) |
| Coordinates | 34 deg. 5.4 min. N (34.090N), 117 deg. 48.9 min. W (117.815W) |
| Depth | 13.63 km (8.50 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=20, Nph=37, Dmin=0.8 km, Rmss=0.18 sec, Erho=0.45 km, Erzz=0.46 km, Gp=149 degrees |
| Event ID# | ci41285272 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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