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 9:49:44 PM (PDT) on Sunday, September 27, 2026.
The magnitude 1.4 event occurred 29 km (18 miles) WSW of Patterson, CA.
The hypocentral depth is 4 km ( 3 miles).
| Magnitude | 1.4 - duration magnitude (Md) |
| Time | Sunday, September 27, 2026 at 9:49:44 PM (PDT) Monday, September 28, 2026 at 4:49:44 (UTC) |
| Distance from |
Patterson, CA - 29 km (18 miles) WSW (258 degrees) East Foothills, CA - 33 km (20 miles) E (82 degrees) Alum Rock, CA - 34 km (21 miles) E (80 degrees) Tracy, CA - 36 km (22 miles) S (184 degrees) Seven Trees, CA - 37 km (23 miles) ENE (67 degrees) |
| Coordinates | 37 deg. 25.1 min. N (37.419N), 121 deg. 27.1 min. W (121.452W) |
| Depth | 4.12 km (2.60 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=10, Nph=10, Dmin=5.6 km, Rmss=0.06 sec, Erho=0.42 km, Erzz=1.13999999 km, Gp=98 degrees |
| Event ID# | nc75443637 |
| 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)
