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 6:54:27 AM (PDT) on Sunday, September 12, 2021.
The magnitude 2.5 event occurred 33 km (20 miles) SW of Rio Dell, CA.
The hypocentral depth is 31 km (19 miles).


Magnitude 2.5 - local magnitude (Ml)
Time Sunday, September 12, 2021 at 6:54:27 AM (PDT)
Sunday, September 12, 2021 at 13:54:27 (UTC)
Distance from Rio Dell, CA - 33 km (20 miles) SW (222 degrees)
Ferndale, CA - 34 km (21 miles) SSW (195 degrees)
Hydesville, CA - 37 km (23 miles) SW (218 degrees)
Fortuna, CA - 39 km (25 miles) SSW (207 degrees)
Redway, CA - 49 km (31 miles) WNW (291 degrees)
Coordinates 40 deg. 16.9 min. N (40.281N), 124 deg. 22.0 min. W (124.367W)
Depth 30.61 km (19.0 miles)
Quality Poor
Location Quality Parameters Nst=17, Nph=38, Dmin=0.6 km, Rmss=0.30 sec, Erho=6.2 km, Erzz=10.9 km, Gp=206 degrees
Event ID# nc73624016
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