Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE 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 event has been reviewed by a seismologist.
A micro earthquake occurred at 10:04:54 AM (PDT) on Wednesday, September 17, 2025.
The magnitude 0.5 event occurred 4 km (3 miles) NW of Palomar Observatory, CA.
The hypocentral depth is 15 km ( 9 miles).
| Magnitude | 0.5 - local magnitude (Ml) |
| Time | Wednesday, September 17, 2025 at 10:04:54 AM (PDT) Wednesday, September 17, 2025 at 17:04:54 (UTC) |
| Distance from |
Palomar Observatory, CA - 4 km (3 miles) NW (316 degrees) Aguanga, CA - 7 km (4 miles) SSW (204 degrees) Pala, CA - 17 km (10 miles) E (83 degrees) Lake Henshaw, CA - 20 km (13 miles) NW (322 degrees) Valley Center, CA - 22 km (14 miles) NE (35 degrees) |
| Coordinates | 33 deg. 23.1 min. N (33.384N), 116 deg. 53.8 min. W (116.897W) |
| Depth | 14.65 km (9.10 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=37, Nph=63, Dmin=4.7 km, Rmss=0.18 sec, Erho=0.21 km, Erzz=0.47 km, Gp=33 degrees |
| Event ID# | ci41293152 |
| 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)
