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 7:57:07 PM (PDT) on Saturday, April 3, 2021.
The magnitude 1.0 event occurred 1 km (0 miles) WNW of Chester, CA.
The hypocentral depth is 11 km ( 7 miles).


Magnitude 1.0 - duration magnitude (Md)
Time Saturday, April 3, 2021 at 7:57:07 PM (PDT)
Sunday, April 4, 2021 at 2:57:07 (UTC)
Distance from Chester, CA - 1 km (0 miles) WNW (295 degrees)
Greenville, CA - 31 km (19 miles) NW (308 degrees)
Quincy, CA - 48 km (30 miles) NNW (329 degrees)
East Quincy, CA - 51 km (31 miles) NW (325 degrees)
Susanville, CA - 52 km (32 miles) WSW (257 degrees)
Coordinates 40 deg. 18.5 min. N (40.309N), 121 deg. 14.3 min. W (121.238W)
Depth 11.35 km (7.1 miles)
Quality Good
Location Quality Parameters Nst=6, Nph=7, Dmin=10.4 km, Rmss=0.03 sec, Erho=0.73 km, Erzz=1.17 km, Gp=139 degrees
Event ID# nc73545390
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For more information, see https://earthquake.usgs.gov

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