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 #7: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 3:12:45 PM (PDT) on Saturday, August 9, 2025.
The magnitude 1.3 event occurred 6 km (4 miles) NE (34 degrees) of Fontana, CA.
The hypocentral depth is 5 km ( 3 miles).
| Magnitude | 1.3 - local magnitude (Ml) |
| Time | Saturday, August 9, 2025 at 3:12:45 PM (PDT) Saturday, August 9, 2025 at 22:12:45 (UTC) |
| Distance from |
Fontana, CA - 6 km (4 miles) NE (34 degrees) Rialto, CA - 6 km (4 miles) NW (311 degrees) Muscoy, CA - 7 km (4 miles) W (260 degrees) Bloomington, CA - 8 km (5 miles) NNW (344 degrees) Devore, CA - 9 km (6 miles) SSW (192 degrees) |
| Coordinates | 34 deg. 8.6 min. N (34.143N), 117 deg. 25.3 min. W (117.422W) |
| Depth | 4.57 km (2.80 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=65, Nph=105, Dmin=5.1 km, Rmss=0.19 sec, Erho=0.18 km, Erzz=0.36 km, Gp=37 degrees |
| Event ID# | ci41257544 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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