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United States · California

M3.3 Earthquake near Humboldt County, California (United States)

UTC time: 2026-10-22 01:43:10 UTC Local time: —

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About this earthquake

A magnitude M3.3 earthquake was recorded near Humboldt County, California (United States) on October 22, 2026 at 01:43 UTC. The hypocenter lay relatively close to the surface at around 11 km, increasing how strongly it was felt. Shaking of this size is frequently noticed but usually harmless.

The event was recorded by USGS. United States: 135 earthquakes were recorded in the past 24 hours, the strongest reaching M3.7.

Details

ID
8926d376f2b6a14eeb3e32b27a2de01bf124167d
Magnitude
M3.3
Depth
11.0 km
UTC time
2026-10-22 01:43:10 UTC
Local time
—
Country
United States
State
California
City
Humboldt County
County
Humboldt County
Source
usgs
Coordinates
40.23450, -124.17083
Temperature
13.8°C

Depth profile

Depth profile Depth: 11 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 11 km
Shallow
11 km
11 km — shallower than the regional average (15.3 km)
Regional average: 15.3 km
Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Volcanoes nearby

  • Clear Lake Volcanic Field
    Distance: 185 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Shasta
    Distance: 212 km ·Stratovolcano ·Elevation: 4'317 m ·Last eruption: 1250 ·United States
  • Lassen Volcanic Center
    Distance: 227 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Medicine Lake
    Distance: 268 km ·Shield ·Elevation: 2'412 m ·Last eruption: 1060 ·United States
  • Escanaba Segment
    Distance: 293 km ·Fissure vent(s) ·Elevation: -1'700 m ·Last eruption: -2260 ·United States
  • Jackson Segment
    Distance: 322 km ·Fissure vent(s) ·Elevation: -3'100 m ·United States

California

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 3.0 · 239 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

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Historic earthquake map · United States

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