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United States · California

M2.8 Earthquake near Humboldt County, California (United States)

UTC time: 2026-10-05 15:56:36 UTC Local time: —

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About this earthquake

On October 5, 2026 at 15:56 UTC, a magnitude M2.8 earthquake occurred near Humboldt County, California (United States). With a focal depth of about 21 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The data is provided by USGS and cross-checked across seismological networks. United States: 179 earthquakes were recorded in the past 24 hours, the strongest reaching M3.5.

Details

ID
e6a4e0b20bd8f93d770b7449877daa15c52563b8
Magnitude
M2.8
Depth
20.6 km
UTC time
2026-10-05 15:56:36 UTC
Local time
—
Country
United States
State
California
City
Humboldt County
County
Humboldt County
Source
usgs
Coordinates
40.57317, -124.04850
Temperature
12.5°C

Depth profile

Depth profile Depth: 20.6 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 20.6 km
Shallow
20.6 km
20.6 km — deeper than the regional average (15.2 km)
Regional average: 15.2 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

  • Shasta
    Distance: 181 km ·Stratovolcano ·Elevation: 4'317 m ·Last eruption: 1250 ·United States
  • Clear Lake Volcanic Field
    Distance: 209 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Lassen Volcanic Center
    Distance: 215 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Medicine Lake
    Distance: 239 km ·Shield ·Elevation: 2'412 m ·Last eruption: 1060 ·United States
  • Escanaba Segment
    Distance: 294 km ·Fissure vent(s) ·Elevation: -1'700 m ·Last eruption: -2260 ·United States
  • Jackson Segment
    Distance: 306 km ·Fissure vent(s) ·Elevation: -3'100 m ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • California Redwood Coast-Humboldt County AirportUnited States · ACV · KACV
    45.3 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-10-05

Nuclear power plants

  • Humboldt Bay nuclear power plantUnited StatesPermanently shut downReactor units at site: 1
    23.0 kmStraight-line distance

Source: Global Energy Monitor · Global Nuclear Power Tracker · Dataset date: 2026-08

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

California

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 2.0 · 2,447 Catalogue entries

Of 2,446 other entries for this area and period, 338 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

Open seismic profile

Historic earthquake map · United States

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