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 3:10:00 AM (PDT) on Monday, April 5, 2021.
The magnitude 1.9 event occurred 8 km (5 miles) SE of Chester, CA.
The hypocentral depth is 7 km ( 4 miles).


Magnitude 1.9 - duration magnitude (Md)
Time Monday, April 5, 2021 at 3:10:00 AM (PDT)
Monday, April 5, 2021 at 10:10:00 (UTC)
Distance from Chester, CA - 8 km (5 miles) SE (129 degrees)
Greenville, CA - 22 km (14 miles) NW (307 degrees)
Quincy, CA - 40 km (25 miles) NNW (334 degrees)
East Quincy, CA - 42 km (26 miles) NNW (329 degrees)
Susanville, CA - 47 km (29 miles) WSW (248 degrees)
Coordinates 40 deg. 15.5 min. N (40.259N), 121 deg. 9.3 min. W (121.155W)
Depth 6.68 km (4.2 miles)
Quality Good
Location Quality Parameters Nst=15, Nph=16, Dmin=1.5 km, Rmss=0.05 sec, Erho=0.38 km, Erzz=0.42 km, Gp=107 degrees
Event ID# nc73545725
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For more information, see https://earthquake.usgs.gov

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