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 10:34:59 AM (PDT) on Thursday, October 23, 2025.
The magnitude 1.7 event (a probable quarry explosion) occurred 7 km (4 miles) SSE of Home Gardens, CA.
The hypocentral depth is -0.48 km (-0.30 miles).
| Magnitude | 1.7 - local magnitude (Ml) |
| Time | Thursday, October 23, 2025 at 10:34:59 AM (PDT) Thursday, October 23, 2025 at 17:34:59 (UTC) |
| Distance from |
Home Gardens, CA - 7 km (4 miles) SSE (151 degrees) Corona, CA - 9 km (6 miles) SE (124 degrees) Woodcrest, CA - 13 km (8 miles) WSW (240 degrees) Norco, CA - 14 km (8 miles) SSE (154 degrees) Riverside, CA - 16 km (10 miles) SSW (210 degrees) |
| Coordinates | 33 deg. 49.3 min. N (33.822N), 117 deg. 29.0 min. W (117.483W) |
| Depth | -0.48 km (-0.30 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=67, Nph=68, Dmin=3.6 km, Rmss=0.23 sec, Erho=0.25 km, Erzz=31.61 km, Gp=27 degrees |
| Event ID# | ci41113311 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
[
Index map ||
Big earthquake list ||
All earthquake list ||
Glossary of terms ||
Top page
]
[
Did you feel it? ||
ShakeMaps
|| Relative2Me
]
[ Data Sources ]
Special maps
Long Valley || Los Angeles || San Francisco
Data Sources
US and World - USGS/NEIC = National Earthquake Information Center
Northern California - UCB = University of California, Berkeley
Southern California - Caltech = California Institute of Technology
Nevada - UNR = University of Nevada, Reno
Offshore = West Coast & Alaska Tsunami Warning Center
...all members of the Advanced National Seismic System (ANSS)
