Recent Earthquakes in California and Nevada


== 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 4:42:38 AM (PDT) on Monday, April 5, 2021.
The magnitude 2.4 event occurred 39 km (24 miles) SW of Ferndale, CA.
The hypocentral depth is 20 km (13 miles).


Magnitude 2.4 - duration magnitude (Md)
Time Monday, April 5, 2021 at 4:42:38 AM (PDT)
Monday, April 5, 2021 at 11:42:38 (UTC)
Distance from Ferndale, CA - 39 km (24 miles) SW (216 degrees)
Rio Dell, CA - 43 km (26 miles) WSW (238 degrees)
Fortuna, CA - 46 km (29 miles) SW (224 degrees)
Hydesville, CA - 46 km (29 miles) SW (233 degrees)
Humboldt Hill, CA - 56 km (35 miles) SSW (212 degrees)
Coordinates 40 deg. 17.8 min. N (40.297N), 124 deg. 32.1 min. W (124.534W)
Depth 20.44 km (12.7 miles)
Quality Fair
Location Quality Parameters Nst=21, Nph=25, Dmin=16.3 km, Rmss=0.09 sec, Erho=0.64 km, Erzz=0.27 km, Gp=257 degrees
Event ID# nc73545760
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For more information, see https://earthquake.usgs.gov

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