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 #7: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 5:19:03 PM (PDT) on Saturday, March 22, 2025.
The magnitude 0.5 event occurred 8 km (5 miles) NNW of Rancho Cucamonga, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 0.5 - local magnitude (Ml) |
| Time | Saturday, March 22, 2025 at 5:19:03 PM (PDT) Sunday, March 23, 2025 at 0:19:03 (UTC) |
| Distance from |
Rancho Cucamonga, CA - 8 km (5 miles) NNW (333 degrees) Upland, CA - 11 km (7 miles) NNE (15 degrees) Lytle Creek, CA - 14 km (8 miles) SW (235 degrees) Claremont, CA - 14 km (9 miles) NE (42 degrees) Montclair, CA - 14 km (9 miles) NNE (28 degrees) |
| Coordinates | 34 deg. 11.4 min. N (34.189N), 117 deg. 37.2 min. W (117.619W) |
| Depth | 6.23 km (3.90 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=15, Nph=21, Dmin=6.6 km, Rmss=0.12 sec, Erho=0.33 km, Erzz=0.45 km, Gp=93 degrees |
| Event ID# | ci40907511 |
| Additional Information | Map Waveforms |
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)
