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 1:12:26 PM (PDT) on Monday, August 11, 2025.
The magnitude 1.6 event occurred 3 km (2 miles) E (96 degrees) of Union City, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 1.6 - duration magnitude (Md) |
| Time | Monday, August 11, 2025 at 1:12:26 PM (PDT) Monday, August 11, 2025 at 20:12:26 (UTC) |
| Distance from |
Union City, CA - 3 km (2 miles) E (96 degrees) Fremont, CA - 6 km (3 miles) N (359 degrees) Newark, CA - 9 km (5 miles) NE (35 degrees) Hayward, CA - 10 km (6 miles) SE (124 degrees) Fairview, CA - 11 km (7 miles) SSE (150 degrees) |
| Coordinates | 37 deg. 35.6 min. N (37.593N), 121 deg. 59.0 min. W (121.984W) |
| Depth | 5.98 km (3.70 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=17, Nph=17, Dmin=2.4 km, Rmss=0.04 sec, Erho=0.19 km, Erzz=0.409999996 km, Gp=67 degrees |
| Event ID# | nc75221957 |
| 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)
