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 11:59:45 AM (PDT) on Sunday, July 20, 2025.
The magnitude 1.1 event occurred 10 km (6 miles) E of Alum Rock, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 1.1 - duration magnitude (Md) |
| Time | Sunday, July 20, 2025 at 11:59:45 AM (PDT) Sunday, July 20, 2025 at 18:59:45 (UTC) |
| Distance from |
Alum Rock, CA - 10 km (6 miles) E (100 degrees) East Foothills, CA - 10 km (6 miles) ESE (110 degrees) Seven Trees, CA - 13 km (8 miles) ENE (57 degrees) San Jose, CA - 16 km (10 miles) E (86 degrees) Buena Vista, CA - 18 km (11 miles) E (80 degrees) |
| Coordinates | 37 deg. 21.0 min. N (37.350N), 121 deg. 42.7 min. W (121.712W) |
| Depth | 7.88 km (4.90 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=8, Nph=8, Dmin=10.7 km, Rmss=0.04 sec, Erho=0.46 km, Erzz=1.13999999 km, Gp=71 degrees |
| Event ID# | nc75212627 |
| 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)
