United States · Alaska

M1.8 Earthquake near Unorganized Borough, Alaska (United States)

UTC time: 2026-10-24 03:56:04 UTC Local time: —

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About this earthquake

A magnitude M1.8 earthquake was recorded near Unorganized Borough, Alaska (United States) on October 24, 2026 at 03:56 UTC. The hypocenter lay relatively close to the surface at around 22 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: 158 earthquakes were recorded in the past 24 hours, the strongest reaching M4.2.

Depth profile

Depth profile Depth: 21.6 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 21.6 km
Shallow
21.6 km
21.6 km — deeper 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

  • Distance: 139 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Distance: 255 km ·Stratovolcano ·Elevation: 5'005 m ·Last eruption: 847 ·United States
  • Distance: 289 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Distance: 306 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Distance: 311 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Distance: 357 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States

Alaska

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 2.0 · 4,148 Catalogue entries

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

Open seismic profile

Historic earthquake map · United States

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Country statistics · United States

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