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 #4: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 4:41:59 PM (PDT) on Monday, September 21, 2026.
The magnitude 1.2 event occurred 10 km (6 miles) NE (40 degrees) of Glendora, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 1.2 - local magnitude (Ml) |
| Time | Monday, September 21, 2026 at 4:41:59 PM (PDT) Monday, September 21, 2026 at 23:41:59 (UTC) |
| Distance from |
Glendora, CA - 10 km (6 miles) NE (40 degrees) San Dimas, CA - 11 km (7 miles) N (6 degrees) La Verne, CA - 12 km (8 miles) N (349 degrees) Azusa, CA - 13 km (8 miles) NE (52 degrees) Charter Oak, CA - 13 km (8 miles) NNE (23 degrees) |
| Coordinates | 34 deg. 12.5 min. N (34.209N), 117 deg. 47.6 min. W (117.793W) |
| Depth | 7.54 km (4.70 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=25, Nph=40, Dmin=8.5 km, Rmss=0.11 sec, Erho=0.15 km, Erzz=0.37 km, Gp=59 degrees |
| Event ID# | ci41336455 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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