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 #6: 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 2:27:47 PM (PDT) on Friday, August 15, 2025.
The magnitude 1.8 event (a probable quarry explosion) occurred 4 km (3 miles) SE of Home Gardens, CA.
The hypocentral depth is 2 km ( 1 mile).
| Magnitude | 1.8 - local magnitude (Ml) |
| Time | Friday, August 15, 2025 at 2:27:47 PM (PDT) Friday, August 15, 2025 at 21:27:47 (UTC) |
| Distance from |
Home Gardens, CA - 4 km (3 miles) SE (142 degrees) Corona, CA - 7 km (5 miles) ESE (109 degrees) Norco, CA - 11 km (7 miles) SSE (151 degrees) Woodcrest, CA - 13 km (8 miles) WSW (253 degrees) Pedley, CA - 14 km (9 miles) S (187 degrees) |
| Coordinates | 33 deg. 50.9 min. N (33.848N), 117 deg. 29.6 min. W (117.493W) |
| Depth | 2.15 km (1.30 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=66, Nph=106, Dmin=5.6 km, Rmss=0.22 sec, Erho=0.18 km, Erzz=0.28 km, Gp=31 degrees |
| Event ID# | ci40399738 |
| 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)
