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 5:30:08 AM (PDT) on Sunday, August 3, 2025.
The magnitude 1.9 event occurred 7 km (4 miles) NNE (26 degrees) of Fontana, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 1.9 - local magnitude (Ml) |
| Time | Sunday, August 3, 2025 at 5:30:08 AM (PDT) Sunday, August 3, 2025 at 12:30:08 (UTC) |
| Distance from |
Fontana, CA - 7 km (4 miles) NNE (26 degrees) Rialto, CA - 7 km (5 miles) NW (317 degrees) Muscoy, CA - 7 km (5 miles) W (270 degrees) Devore, CA - 8 km (5 miles) SSW (196 degrees) Bloomington, CA - 10 km (6 miles) NNW (344 degrees) |
| Coordinates | 34 deg. 9.3 min. N (34.155N), 117 deg. 25.5 min. W (117.425W) |
| Depth | 6.16 km (3.80 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=124, Nph=229, Dmin=4.2 km, Rmss=0.21 sec, Erho=0.11 km, Erzz=0.31 km, Gp=20 degrees |
| Event ID# | ci41252032 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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