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 4:31:12 PM (PDT) on Friday, September 4, 2026.
The magnitude 0.9 event occurred 8 km (5 miles) N of Fontana, CA.
The hypocentral depth is 10 km ( 6 miles).
| Magnitude | 0.9 - local magnitude (Ml) |
| Time | Friday, September 4, 2026 at 4:31:12 PM (PDT) Friday, September 4, 2026 at 23:31:12 (UTC) |
| Distance from |
Fontana, CA - 8 km (5 miles) N (352 degrees) Devore, CA - 9 km (5 miles) SW (226 degrees) Rancho Cucamonga, CA - 11 km (7 miles) ENE (64 degrees) Rialto, CA - 11 km (7 miles) NW (306 degrees) Lytle Creek, CA - 11 km (7 miles) SSE (166 degrees) |
| Coordinates | 34 deg. 10.0 min. N (34.167N), 117 deg. 28.2 min. W (117.471W) |
| Depth | 10.02 km (6.20 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=24, Nph=43, Dmin=5.2 km, Rmss=0.2 sec, Erho=0.34 km, Erzz=0.52 km, Gp=56 degrees |
| Event ID# | ci41541760 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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