Recent Earthquakes in California and Nevada
== PRELIMINARY EVENT 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 is a computer-generated message. This event has not yet been reviewed by a seismologist.
A micro quarry occurred at 12:02:07 PM (PDT) on Tuesday, September 23, 2025.
The magnitude 1.1 event (a probable quarry explosion) occurred 2 km (1 miles) ESE of Home Gardens, CA.
The hypocentral depth is 1 km ( 1 mile).
| Magnitude | 1.1 - local magnitude (Ml) |
| Time | Tuesday, September 23, 2025 at 12:02:07 PM (PDT) Tuesday, September 23, 2025 at 19:02:07 (UTC) |
| Distance from |
Home Gardens, CA - 2 km (1 miles) ESE (122 degrees) Corona, CA - 6 km (3 miles) E (89 degrees) Norco, CA - 8 km (5 miles) SSE (150 degrees) Pedley, CA - 12 km (7 miles) SSW (194 degrees) Riverside, CA - 13 km (8 miles) SW (230 degrees) |
| Coordinates | 33 deg. 52.2 min. N (33.871N), 117 deg. 30.4 min. W (117.507W) |
| Depth | 1.24 km (0.80 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=28, Nph=38, Dmin=8.2 km, Rmss=0.22 sec, Erho=0.31 km, Erzz=0.48 km, Gp=57 degrees |
| Event ID# | ci40448970 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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