Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #3: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 1:31:18 PM (PDT) on Saturday, July 17, 2021.
The magnitude 0.8 event occurred 13 km (8 miles) ESE of Hidden Valley Lake, CA.
The hypocentral depth is 8 km ( 5 miles).
|Magnitude||0.8 - duration magnitude (Md)|
|Time||Saturday, July 17, 2021 at 1:31:18 PM (PDT)
Saturday, July 17, 2021 at 20:31:18 (UTC)
Hidden Valley Lake, CA - 13 km (8 miles) ESE (121 degrees)|
Middletown, CA - 16 km (10 miles) E (92 degrees)
Angwin, CA - 19 km (12 miles) N (5 degrees)
Calistoga, CA - 23 km (14 miles) NE (35 degrees)
Lower Lake, CA - 24 km (15 miles) SE (139 degrees)
|Coordinates||38 deg. 44.9 min. N (38.748N), 122 deg. 25.8 min. W (122.430W)|
|Depth||7.85 km (4.9 miles)|
|Location Quality Parameters||Nst=10, Nph=12, Dmin=6.6 km, Rmss=0.17 sec, Erho=0.67 km, Erzz=1.72 km, Gp=93 degrees|
|Additional Information|| Map
For more information, see https://earthquake.usgs.gov
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)