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United States · Alaska

M1.5 Earthquake near Unorganized Borough, Alaska (United States)

UTC time: 2026-09-19 18:53:36 UTC Local time: —

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About this earthquake

On September 19, 2026 at 18:53 UTC, a magnitude M1.5 earthquake occurred near Unorganized Borough, Alaska (United States). The hypocenter lay relatively close to the surface at around 18 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: 193 earthquakes were recorded in the past 24 hours, the strongest reaching M3.1.

Depth profile

Depth profile Depth: 17.9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 17.9 km
Shallow
17.9 km
17.9 km — close to 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: 90 km ·Stratovolcano ·Elevation: 5'005 m ·Last eruption: 847 ·United States
  • Wrangell
    Distance: 214 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Alligator Lake
    Distance: 319 km ·Volcanic field ·Elevation: 2'217 m ·Canada
  • Fort Selkirk
    Distance: 328 km ·Volcanic field ·Elevation: 1'239 m ·Canada
  • Atlin Volcanic Field
    Distance: 447 km ·Pyroclastic cone(s) ·Elevation: 1'880 m ·Canada

Alaska

Context for this earthquake

19 Sep 2025 – 19 Sep 2026 · M ≥ 2.0 · 4,106 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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