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== PRELIMINARY EARTHQUAKE REPORT ==

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



Version #2: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 11:31:48 AM (PDT) on Thursday, June 25, 2020.
The magnitude 1.2 event occurred 31 km (19 miles) NW of Chester, CA.
The hypocentral depth is 3 km ( 2 miles).



Magnitude 1.2 - duration magnitude (Md)
Time Thursday, June 25, 2020 at 11:31:48 AM (PDT)
Thursday, June 25, 2020 at 18:31:48 (UTC)
Distance from Chester, CA - 31 km (19 miles) NW (308 degrees)
Shingletown, CA - 31 km (20 miles) E (93 degrees)
Burney, CA - 47 km (29 miles) SSE (165 degrees)
Greenville, CA - 61 km (38 miles) NW (308 degrees)
Palo Cedro, CA - 62 km (38 miles) E (99 degrees)
Coordinates 40 deg. 28.6 min. N (40.477N), 121 deg. 31.0 min. W (121.517W)
Depth 2.97 km (1.8 miles)
Quality Good
Location Quality Parameters Nst=8, Nph=9, Dmin=1.4 km, Rmss=0.03 sec, Erho=0.59 km, Erzz=0.46 km, Gp=139 degrees
Event ID# nc73416451
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