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 2:32:35 AM (PDT) on Sunday, March 15, 2026.
The magnitude 1.0 event occurred 7 km (4 miles) N of Fontana, CA.
The hypocentral depth is 7 km ( 4 miles).
| Magnitude | 1.0 - local magnitude (Ml) |
| Time | Sunday, March 15, 2026 at 2:32:35 AM (PDT) Sunday, March 15, 2026 at 9:32:35 (UTC) |
| Distance from |
Fontana, CA - 7 km (4 miles) N (355 degrees) Devore, CA - 9 km (6 miles) SW (219 degrees) Rialto, CA - 10 km (6 miles) WNW (303 degrees) Rancho Cucamonga, CA - 11 km (7 miles) ENE (70 degrees) Muscoy, CA - 11 km (7 miles) W (272 degrees) |
| Coordinates | 34 deg. 9.4 min. N (34.157N), 117 deg. 27.9 min. W (117.464W) |
| Depth | 6.87 km (4.30 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=29, Nph=47, Dmin=5.2 km, Rmss=0.13 sec, Erho=0.24 km, Erzz=0.34 km, Gp=65 degrees |
| Event ID# | ci41204503 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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