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 11:44:15 PM (PDT) on Friday, October 30, 2026.
The magnitude 0.9 event occurred 3 km (2 miles) S of San Dimas, CA.
The hypocentral depth is 14 km ( 9 miles).
| Magnitude | 0.9 - local magnitude (Ml) |
| Time | Friday, October 30, 2026 at 11:44:15 PM (PDT) Saturday, October 31, 2026 at 6:44:15 (UTC) |
| Distance from |
San Dimas, CA - 3 km (2 miles) S (181 degrees) Diamond Bar, CA - 5 km (3 miles) N (3 degrees) Charter Oak, CA - 5 km (3 miles) SE (131 degrees) La Verne, CA - 5 km (3 miles) SW (232 degrees) Pomona, CA - 5 km (3 miles) WNW (289 degrees) |
| Coordinates | 34 deg. 4.5 min. N (34.075N), 117 deg. 48.4 min. W (117.807W) |
| Depth | 13.77 km (8.60 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=37, Nph=63, Dmin=1.8 km, Rmss=0.2 sec, Erho=0.37 km, Erzz=0.47 km, Gp=107 degrees |
| Event ID# | ci41570200 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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