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 12:08:43 PM (PDT) on Saturday, October 4, 2025.
The magnitude 1.0 event occurred 3 km (2 miles) ESE of Lytle Creek, CA.
The hypocentral depth is 12 km ( 8 miles).
| Magnitude | 1.0 - local magnitude (Ml) |
| Time | Saturday, October 4, 2025 at 12:08:43 PM (PDT) Saturday, October 4, 2025 at 19:08:43 (UTC) |
| Distance from |
Lytle Creek, CA - 3 km (2 miles) ESE (120 degrees) Devore, CA - 7 km (5 miles) WNW (293 degrees) Muscoy, CA - 16 km (10 miles) NW (311 degrees) Fontana, CA - 17 km (10 miles) N (355 degrees) Rancho Cucamonga, CA - 17 km (10 miles) NE (35 degrees) |
| Coordinates | 34 deg. 14.9 min. N (34.248N), 117 deg. 28.5 min. W (117.475W) |
| Depth | 12.15 km (7.60 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=26, Nph=46, Dmin=1.7 km, Rmss=0.13 sec, Erho=0.23 km, Erzz=0.3 km, Gp=67 degrees |
| Event ID# | ci41102615 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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