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 4:30:45 AM (PDT) on Wednesday, September 15, 2021.
The magnitude 0.9 event occurred 9 km (6 miles) NW of The Geysers, CA.
The hypocentral depth is 1 km ( 1 mile).


Magnitude 0.9 - duration magnitude (Md)
Time Wednesday, September 15, 2021 at 4:30:45 AM (PDT)
Wednesday, September 15, 2021 at 11:30:45 (UTC)
Distance from The Geysers, CA - 9 km (6 miles) NW (318 degrees)
Cobb, CA - 9 km (6 miles) WNW (282 degrees)
Kelseyville, CA - 15 km (10 miles) S (176 degrees)
Cloverdale, CA - 17 km (10 miles) ENE (77 degrees)
Soda Bay, CA - 18 km (11 miles) S (191 degrees)
Coordinates 38 deg. 50.4 min. N (38.840N), 122 deg. 49.7 min. W (122.828W)
Depth 1.31 km (0.8 miles)
Quality Good
Location Quality Parameters Nst=12, Nph=12, Dmin=0.6 km, Rmss=0.02 sec, Erho=0.25 km, Erzz=0.65 km, Gp=103 degrees
Event ID# nc73625076
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)