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 1:19:41 AM (PDT) on Friday, September 10, 2021.
The magnitude 2.5 event occurred 13 km (8 miles) N of Healdsburg, CA.
The hypocentral depth is 4 km ( 3 miles).


Magnitude 2.5 - duration magnitude (Md)
Time Friday, September 10, 2021 at 1:19:41 AM (PDT)
Friday, September 10, 2021 at 8:19:41 (UTC)
Distance from Healdsburg, CA - 13 km (8 miles) N (351 degrees)
The Geysers, CA - 13 km (8 miles) WSW (246 degrees)
Cloverdale, CA - 14 km (9 miles) SE (128 degrees)
Cobb, CA - 18 km (11 miles) SW (235 degrees)
Windsor, CA - 21 km (13 miles) NNW (342 degrees)
Coordinates 38 deg. 43.8 min. N (38.729N), 122 deg. 53.6 min. W (122.893W)
Depth 4.38 km (2.7 miles)
Quality Fair
Location Quality Parameters Nst=7, Nph=7, Dmin=9.7 km, Rmss=0.22 sec, Erho=3.55 km, Erzz=15.12 km, Gp=166 degrees
Event ID# nc73623001
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)