Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

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


Version #5: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 1:00:28 AM (PDT) on Monday, April 5, 2021.
The magnitude 0.7 event occurred 30 km (19 miles) NW of Chester, CA.
The hypocentral depth is 3 km ( 2 miles).


Magnitude 0.7 - duration magnitude (Md)
Time Monday, April 5, 2021 at 1:00:28 AM (PDT)
Monday, April 5, 2021 at 8:00:28 (UTC)
Distance from Chester, CA - 30 km (19 miles) NW (307 degrees)
Shingletown, CA - 32 km (20 miles) E (94 degrees)
Burney, CA - 47 km (29 miles) SSE (165 degrees)
Greenville, CA - 60 km (38 miles) NW (308 degrees)
Palo Cedro, CA - 62 km (38 miles) E (99 degrees)
Coordinates 40 deg. 28.3 min. N (40.471N), 121 deg. 31.0 min. W (121.517W)
Depth 2.72 km (1.7 miles)
Quality Good
Location Quality Parameters Nst=7, Nph=9, Dmin=0.8 km, Rmss=0.02 sec, Erho=0.68 km, Erzz=0.33 km, Gp=93 degrees
Event ID# nc71122969
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