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 1:29:05 AM (PDT) on Friday, August 1, 2025.
The magnitude 0.9 event occurred 6 km (4 miles) NE (37 degrees) of Fontana, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 0.9 - local magnitude (Ml) |
| Time | Friday, August 1, 2025 at 1:29:05 AM (PDT) Friday, August 1, 2025 at 8:29:05 (UTC) |
| Distance from |
Fontana, CA - 6 km (4 miles) NE (37 degrees) Rialto, CA - 6 km (4 miles) NW (312 degrees) Muscoy, CA - 7 km (4 miles) WSW (258 degrees) Bloomington, CA - 8 km (5 miles) NNW (346 degrees) Devore, CA - 9 km (6 miles) S (189 degrees) |
| Coordinates | 34 deg. 8.5 min. N (34.142N), 117 deg. 25.1 min. W (117.418W) |
| Depth | 5.98 km (3.70 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=48, Nph=71, Dmin=5.1 km, Rmss=0.15 sec, Erho=0.17 km, Erzz=0.47 km, Gp=55 degrees |
| Event ID# | ci41250384 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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