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 5:38:13 PM (PDT) on Saturday, June 20, 2026.
The magnitude 1.0 event occurred 9 km (5 miles) NE (50 degrees) of Windsor, CA.
The hypocentral depth is 4 km ( 2 miles).
| Magnitude | 1.0 - duration magnitude (Md) |
| Time | Saturday, June 20, 2026 at 5:38:13 PM (PDT) Sunday, June 21, 2026 at 0:38:13 (UTC) |
| Distance from |
Windsor, CA - 9 km (5 miles) NE (50 degrees) Larkfield-Wikiup, CA - 9 km (6 miles) N (6 degrees) Healdsburg, CA - 11 km (7 miles) E (98 degrees) Calistoga, CA - 14 km (9 miles) W (278 degrees) Santa Rosa, CA - 17 km (10 miles) N (349 degrees) |
| Coordinates | 38 deg. 35.8 min. N (38.597N), 122 deg. 44.4 min. W (122.740W) |
| Depth | 4.01 km (2.50 miles) |
| Quality | Poor |
| Location Quality Parameters | Nst=5, Nph=5, Dmin=18.3 km, Rmss=0.04 sec, Erho=2 km, Erzz=8.52000046 km, Gp=194 degrees |
| Event ID# | nc75380381 |
| 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)
