Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #0: 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 11:53:40 AM (PST) on Sunday, November 9, 2025.
The magnitude 1.4 event occurred 10 km (6 miles) ENE (78 degrees) of Blackhawk, CA.
The hypocentral depth is 4 km ( 2 miles).
| Magnitude | 1.4 - duration magnitude (Md) |
| Time | Sunday, November 9, 2025 at 11:53:40 AM (PST) Sunday, November 9, 2025 at 19:53:40 (UTC) |
| Distance from |
Blackhawk, CA - 10 km (6 miles) ENE (78 degrees) Brentwood, CA - 11 km (7 miles) SSW (212 degrees) Diablo, CA - 14 km (9 miles) E (88 degrees) Byron, CA - 14 km (9 miles) WSW (258 degrees) Clayton, CA - 17 km (10 miles) SE (132 degrees) |
| Coordinates | 37 deg. 50.4 min. N (37.840N), 121 deg. 47.8 min. W (121.796W) |
| Depth | 3.69 km (2.30 miles) |
| Quality | Poor |
| Location Quality Parameters | Nst=6, Nph=5, Dmin=13.3 km, Rmss=0.27 sec, Erho=1.91 km, Erzz=22.75 km, Gp=208 degrees |
| Event ID# | nc75261181 |
| 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)
