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 #5: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 4:56:14 AM (PDT) on Friday, August 1, 2025.
The magnitude 0.7 event occurred 7 km (4 miles) NNE (18 degrees) of Fontana, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 0.7 - local magnitude (Ml) |
| Time | Friday, August 1, 2025 at 4:56:14 AM (PDT) Friday, August 1, 2025 at 11:56:14 (UTC) |
| Distance from |
Fontana, CA - 7 km (4 miles) NNE (18 degrees) Rialto, CA - 8 km (5 miles) NW (313 degrees) Devore, CA - 8 km (5 miles) SSW (203 degrees) Muscoy, CA - 8 km (5 miles) W (271 degrees) Bloomington, CA - 10 km (6 miles) NNW (339 degrees) |
| Coordinates | 34 deg. 9.3 min. N (34.156N), 117 deg. 26.1 min. W (117.435W) |
| Depth | 5.73 km (3.60 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=30, Nph=46, Dmin=8.3 km, Rmss=0.17 sec, Erho=0.25 km, Erzz=0.63 km, Gp=44 degrees |
| Event ID# | ci41250472 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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