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 0:08:38 AM (PDT) on Saturday, April 18, 2026.
The magnitude 1.5 event occurred 30 km (18 miles) SW of Rio Dell, CA.
The hypocentral depth is 9 km ( 5 miles).


Magnitude 1.5 - duration magnitude (Md)
Time Saturday, April 18, 2026 at 0:08:38 AM (PDT)
Saturday, April 18, 2026 at 7:08:38 (UTC)
Distance from Rio Dell, CA - 30 km (18 miles) SW (222 degrees)
Ferndale, CA - 31 km (19 miles) SSW (192 degrees)
Hydesville, CA - 34 km (21 miles) SW (217 degrees)
Fortuna, CA - 36 km (23 miles) SSW (205 degrees)
Redway, CA - 48 km (30 miles) WNW (295 degrees)
Coordinates 40 deg. 18.0 min. N (40.301N), 124 deg. 20.4 min. W (124.339W)
Depth 8.74 km (5.40 miles)
Quality Good
Location Quality Parameters Nst=13, Nph=16, Dmin=1.4 km, Rmss=0.08 sec, Erho=0.74 km, Erzz=0.54 km, Gp=179 degrees
Event ID# nc75346947
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