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United States · Alaska

M1.0 Earthquake near Unorganized Borough, Alaska (United States)

UTC time: 2026-08-27 22:42:15 UTC Local time: —

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About this earthquake

A magnitude M1.0 earthquake was recorded near Unorganized Borough, Alaska (United States) on August 27, 2026 at 22:42 UTC. The hypocenter lay relatively close to the surface at around 7 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 181 earthquakes, the strongest at M4.6.

Depth profile

Depth profile Depth: 7.3 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 7.3 km
Shallow
7.3 km
7.3 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

  • Semisopochnoi
    Distance: 5 km ·Stratovolcano ·Elevation: 1'221 m ·Last eruption: 2023 ·United States
  • Little Sitkin
    Distance: 68 km ·Stratovolcano ·Elevation: 1'174 m ·Last eruption: 1830 ·United States
  • Davidof
    Distance: 83 km ·Stratovolcano ·Elevation: 328 m ·United States
  • Segula
    Distance: 97 km ·Stratovolcano ·Elevation: 1'160 m ·United States
  • Kiska
    Distance: 134 km ·Stratovolcano ·Elevation: 1'220 m ·Last eruption: 1990 ·United States
  • Buldir
    Distance: 252 km ·Stratovolcano ·Elevation: 656 m ·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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