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United States · Alaska

M1.4 Earthquake near Unorganized Borough, Alaska (United States)

UTC time: 2026-09-30 16:25:40 UTC Local time: —

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About this earthquake

A magnitude M1.4 earthquake was recorded near Unorganized Borough, Alaska (United States) on September 30, 2026 at 16:25 UTC. The hypocenter lay relatively close to the surface at around 12 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: 173 earthquakes were recorded in the past 24 hours, the strongest reaching M4.3.

Depth profile

Depth profile Depth: 11.8 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 11.8 km
Shallow
11.8 km
11.8 km — shallower 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

  • Churchill
    Distance: 31 km ·Stratovolcano ·Elevation: 5'005 m ·Last eruption: 847 ·United States
  • Wrangell
    Distance: 124 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Fort Selkirk
    Distance: 267 km ·Volcanic field ·Elevation: 1'239 m ·Canada
  • Alligator Lake
    Distance: 369 km ·Volcanic field ·Elevation: 2'217 m ·Canada
  • Buzzard Creek
    Distance: 430 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States

Alaska

Context for this earthquake

30 Sep 2025 – 30 Sep 2026 · M ≥ 2.0 · 4,146 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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