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 9:04:16 PM (PDT) on Friday, April 30, 2021.
The magnitude 1.0 event occurred 5 km (3 miles) NW of The Geysers, CA.
The hypocentral depth is 3 km ( 2 miles).


Magnitude 1.0 - duration magnitude (Md)
Time Friday, April 30, 2021 at 9:04:16 PM (PDT)
Saturday, May 1, 2021 at 4:04:16 (UTC)
Distance from The Geysers, CA - 5 km (3 miles) NW (321 degrees)
Cobb, CA - 6 km (4 miles) W (263 degrees)
Middletown, CA - 17 km (11 miles) WNW (294 degrees)
Kelseyville, CA - 18 km (11 miles) SSE (168 degrees)
Cloverdale, CA - 19 km (12 miles) E (87 degrees)
Coordinates 38 deg. 48.9 min. N (38.815N), 122 deg. 47.7 min. W (122.796W)
Depth 2.99 km (1.9 miles)
Quality Excellent
Location Quality Parameters Nst=28, Nph=27, Dmin=0.8 km, Rmss=0.02 sec, Erho=0.22 km, Erzz=0.43 km, Gp=59 degrees
Event ID# nc73556725
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)