Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California


Version #4: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 10:12:14 PM (PDT) on Sunday, July 18, 2021.
The magnitude 1.5 event occurred 14 km (9 miles) E (96 degrees) of Angwin, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 1.5 - duration magnitude (Md)
Time Sunday, July 18, 2021 at 10:12:14 PM (PDT)
Monday, July 19, 2021 at 5:12:14 (UTC)
Distance from Angwin, CA - 14 km (9 miles) E (96 degrees)
Saint Helena, CA - 17 km (11 miles) ENE (68 degrees)
Yountville, CA - 19 km (12 miles) NNE (19 degrees)
Calistoga, CA - 25 km (16 miles) E (94 degrees)
Kenwood, CA - 28 km (17 miles) NE (53 degrees)
Coordinates 38 deg. 33.8 min. N (38.562N), 122 deg. 17.4 min. W (122.290W)
Depth 6.09 km (3.8 miles)
Quality Good
Location Quality Parameters Nst=19, Nph=22, Dmin=3.4 km, Rmss=0.09 sec, Erho=0.21 km, Erzz=0.46 km, Gp=98 degrees
Event ID# nc73595096
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)