Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

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


Version #0: This report supersedes any earlier reports of this event. This is a computer-generated message. This event has not yet been reviewed by a seismologist.

A micro earthquake occurred at 7:13:36 PM (PDT) on Sunday, October 4, 2026.
The magnitude 1.1 event occurred 39 km (24 miles) E of Hydesville, CA.
The hypocentral depth is 16 km (10 miles).


Magnitude 1.1 - duration magnitude (Md)
Time Sunday, October 4, 2026 at 7:13:36 PM (PDT)
Monday, October 5, 2026 at 2:13:36 (UTC)
Distance from Hydesville, CA - 39 km (24 miles) E (100 degrees)
Rio Dell, CA - 39 km (24 miles) E (92 degrees)
Hayfork, CA - 39 km (25 miles) W (259 degrees)
Redway, CA - 43 km (27 miles) NNE (21 degrees)
Fortuna, CA - 45 km (28 miles) ESE (106 degrees)
Coordinates 40 deg. 29.1 min. N (40.484N), 123 deg. 38.4 min. W (123.641W)
Depth 16.42 km (10.20 miles)
Quality Fair
Location Quality Parameters Nst=6, Nph=6, Dmin=5.8 km, Rmss=0.13 sec, Erho=1.17 km, Erzz=1.03999996 km, Gp=169 degrees
Event ID# nc75444746
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