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 12:02:59 PM (PDT) on Wednesday, August 27, 2025.
The magnitude 1.3 event (a probable quarry explosion) occurred 3 km (2 miles) ESE of Home Gardens, CA.
The hypocentral depth is -1 km (-0.30 miles).
| Magnitude | 1.3 - local magnitude (Ml) |
| Time | Wednesday, August 27, 2025 at 12:02:59 PM (PDT) Wednesday, August 27, 2025 at 19:02:59 (UTC) |
| Distance from |
Home Gardens, CA - 3 km (2 miles) ESE (105 degrees) Corona, CA - 7 km (4 miles) E (88 degrees) Norco, CA - 8 km (5 miles) SE (142 degrees) Pedley, CA - 12 km (7 miles) S (188 degrees) Riverside, CA - 12 km (8 miles) SW (227 degrees) |
| Coordinates | 33 deg. 52.3 min. N (33.872N), 117 deg. 29.7 min. W (117.494W) |
| Depth | -0.54 km (-0.30 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=33, Nph=40, Dmin=7.6 km, Rmss=0.22 sec, Erho=0.32 km, Erzz=31.61 km, Gp=51 degrees |
| Event ID# | ci41276784 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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