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 #4: 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 earthquake occurred at 10:52:25 AM (PDT) on Thursday, August 21, 2025.
The magnitude 1.2 event occurred 3 km (2 miles) E (82 degrees) of Moreno Valley, CA.
The hypocentral depth is 5 km ( 3 miles).
| Magnitude | 1.2 - local magnitude (Ml) |
| Time | Thursday, August 21, 2025 at 10:52:25 AM (PDT) Thursday, August 21, 2025 at 17:52:25 (UTC) |
| Distance from |
Moreno Valley, CA - 3 km (2 miles) E (82 degrees) March Air Reserve Base, CA - 8 km (5 miles) ENE (57 degrees) Mead Valley, CA - 14 km (9 miles) NE (42 degrees) Redlands, CA - 14 km (9 miles) S (184 degrees) Calimesa, CA - 14 km (9 miles) WSW (243 degrees) |
| Coordinates | 33 deg. 55.8 min. N (33.930N), 117 deg. 11.5 min. W (117.192W) |
| Depth | 4.76 km (3.00 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=8, Nph=10, Dmin=21.4 km, Rmss=0.27 sec, Erho=0.84 km, Erzz=21.02 km, Gp=129 degrees |
| Event ID# | ci41271032 |
| 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)
