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 1:53:03 AM (PDT) on Saturday, October 31, 2026.
The magnitude 1.0 event occurred 4 km (2 miles) N of Mira Loma, CA.
The hypocentral depth is 9 km ( 6 miles).
| Magnitude | 1.0 - local magnitude (Ml) |
| Time | Saturday, October 31, 2026 at 1:53:03 AM (PDT) Saturday, October 31, 2026 at 8:53:03 (UTC) |
| Distance from |
Mira Loma, CA - 4 km (2 miles) N (355 degrees) Glen Avon, CA - 4 km (2 miles) WNW (294 degrees) Pedley, CA - 7 km (4 miles) NW (324 degrees) Ontario, CA - 10 km (6 miles) ESE (107 degrees) Fontana, CA - 10 km (6 miles) SW (215 degrees) |
| Coordinates | 34 deg. 1.5 min. N (34.025N), 117 deg. 31.2 min. W (117.520W) |
| Depth | 8.83 km (5.50 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=57, Nph=100, Dmin=4.5 km, Rmss=0.16 sec, Erho=0.17 km, Erzz=0.3 km, Gp=45 degrees |
| Event ID# | ci41570264 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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