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 5:00:34 PM (PDT) on Friday, September 4, 2026.
The magnitude 0.9 event occurred 3 km (2 miles) NE (49 degrees) of San Dimas, CA.
The hypocentral depth is 5 km ( 3 miles).
| Magnitude | 0.9 - local magnitude (Ml) |
| Time | Friday, September 4, 2026 at 5:00:34 PM (PDT) Saturday, September 5, 2026 at 0:00:34 (UTC) |
| Distance from |
San Dimas, CA - 3 km (2 miles) NE (49 degrees) La Verne, CA - 3 km (2 miles) NNW (341 degrees) Claremont, CA - 6 km (4 miles) WNW (302 degrees) Charter Oak, CA - 7 km (4 miles) ENE (67 degrees) Glendora, CA - 8 km (5 miles) E (97 degrees) |
| Coordinates | 34 deg. 7.6 min. N (34.127N), 117 deg. 46.7 min. W (117.779W) |
| Depth | 4.93 km (3.10 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=20, Nph=29, Dmin=4.7 km, Rmss=0.16 sec, Erho=0.22 km, Erzz=0.38 km, Gp=72 degrees |
| Event ID# | ci41541768 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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