Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #2: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 7:15:59 AM (PDT) on Sunday, March 23, 2025.
The magnitude 0.9 event occurred 12 km (7 miles) SE of Middletown, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 0.9 - duration magnitude (Md) |
| Time | Sunday, March 23, 2025 at 7:15:59 AM (PDT) Sunday, March 23, 2025 at 14:15:59 (UTC) |
| Distance from |
Middletown, CA - 12 km (7 miles) SE (124 degrees) Calistoga, CA - 14 km (9 miles) NNE (28 degrees) Angwin, CA - 14 km (9 miles) NNW (341 degrees) Hidden Valley Lake, CA - 14 km (9 miles) SSE (159 degrees) Saint Helena, CA - 21 km (13 miles) N (352 degrees) |
| Coordinates | 38 deg. 41.5 min. N (38.692N), 122 deg. 30.1 min. W (122.502W) |
| Depth | 6.46 km (4.00 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=16, Nph=19, Dmin=7.1 km, Rmss=0.05 sec, Erho=0.22 km, Erzz=0.64 km, Gp=71 degrees |
| Event ID# | nc75153852 |
| 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)
