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 #7: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro quarry occurred at 2:02:30 PM (PDT) on Monday, October 20, 2025.
The magnitude 1.3 event (a probable quarry explosion) occurred 5 km (3 miles) SE of Home Gardens, CA.
The hypocentral depth is -0.50 km (-0.30 miles).
| Magnitude | 1.3 - local magnitude (Ml) |
| Time | Monday, October 20, 2025 at 2:02:30 PM (PDT) Monday, October 20, 2025 at 21:02:30 (UTC) |
| Distance from |
Home Gardens, CA - 5 km (3 miles) SE (143 degrees) Corona, CA - 8 km (5 miles) ESE (112 degrees) Norco, CA - 11 km (7 miles) SSE (151 degrees) Woodcrest, CA - 13 km (8 miles) WSW (251 degrees) Riverside, CA - 14 km (9 miles) SW (217 degrees) |
| Coordinates | 33 deg. 50.6 min. N (33.844N), 117 deg. 29.4 min. W (117.490W) |
| Depth | -0.50 km (-0.30 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=44, Nph=44, Dmin=5.1 km, Rmss=0.2 sec, Erho=0.33 km, Erzz=31.61 km, Gp=48 degrees |
| Event ID# | ci41111847 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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