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 5:38:43 PM (PDT) on Saturday, September 11, 2021.
The magnitude 0.4 event occurred 9 km (6 miles) WNW of Cobb, CA.
The hypocentral depth is 3 km ( 2 miles).


Magnitude 0.4 - duration magnitude (Md)
Time Saturday, September 11, 2021 at 5:38:43 PM (PDT)
Sunday, September 12, 2021 at 0:38:43 (UTC)
Distance from Cobb, CA - 9 km (6 miles) WNW (285 degrees)
The Geysers, CA - 10 km (6 miles) NW (320 degrees)
Kelseyville, CA - 15 km (9 miles) S (176 degrees)
Cloverdale, CA - 17 km (11 miles) ENE (75 degrees)
Soda Bay, CA - 18 km (11 miles) S (191 degrees)
Coordinates 38 deg. 50.6 min. N (38.844N), 122 deg. 49.7 min. W (122.828W)
Depth 2.7 km (1.7 miles)
Quality Fair
Location Quality Parameters Nst=8, Nph=8, Dmin=0.9 km, Rmss=0.01 sec, Erho=1.34 km, Erzz=2.75 km, Gp=148 degrees
Event ID# nc73623816
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)