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== 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 7:37:46 PM (PDT) on Thursday, June 25, 2020.
The magnitude 1.8 event occurred 23 km (14 miles) SW of Ferndale, CA.
The hypocentral depth is 20 km (12 miles).



Magnitude 1.8 - duration magnitude (Md)
Time Thursday, June 25, 2020 at 7:37:46 PM (PDT)
Friday, June 26, 2020 at 2:37:46 (UTC)
Distance from Ferndale, CA - 23 km (14 miles) SW (235 degrees)
Fortuna, CA - 32 km (20 miles) WSW (240 degrees)
Rio Dell, CA - 33 km (20 miles) W (261 degrees)
Hydesville, CA - 34 km (21 miles) WSW (253 degrees)
Humboldt Hill, CA - 39 km (24 miles) SW (220 degrees)
Coordinates 40 deg. 27.3 min. N (40.455N), 124 deg. 29.2 min. W (124.486W)
Depth 19.53 km (12.1 miles)
Quality Fair
Location Quality Parameters Nst=18, Nph=26, Dmin=12.8 km, Rmss=0.1 sec, Erho=0.54 km, Erzz=0.52 km, Gp=257 degrees
Event ID# nc73416801
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