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 #3: This report supersedes any earlier reports of this event. This is a computer-generated message. This event has not yet been reviewed by a seismologist.
A micro earthquake occurred at 7:23:28 PM (PST) on Wednesday, January 21, 2026.
The magnitude 1.0 event occurred 8 km (5 miles) NNW of Fontana, CA.
The hypocentral depth is 7 km ( 4 miles).
| Magnitude | 1.0 - local magnitude (Ml) |
| Time | Wednesday, January 21, 2026 at 7:23:28 PM (PST) Thursday, January 22, 2026 at 3:23:28 (UTC) |
| Distance from |
Fontana, CA - 8 km (5 miles) NNW (342 degrees) Rancho Cucamonga, CA - 10 km (6 miles) ENE (59 degrees) Lytle Creek, CA - 10 km (6 miles) S (174 degrees) Devore, CA - 10 km (6 miles) SW (233 degrees) Muscoy, CA - 13 km (8 miles) W (277 degrees) |
| Coordinates | 34 deg. 10.1 min. N (34.169N), 117 deg. 29.2 min. W (117.487W) |
| Depth | 6.78 km (4.20 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=17, Nph=27, Dmin=4.5 km, Rmss=0.12 sec, Erho=0.3 km, Erzz=0.5 km, Gp=73 degrees |
| Event ID# | ci41167671 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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