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United States · Alaska

M3.5 Earthquake near Aleutians East Borough, Alaska (United States)

UTC time: 2026-09-22 20:50:55 UTC Local time: —
Magnitude
M3.5
Depth
35.0 km
Source
USGS

Alaska · Aleutians East Borough

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About this earthquake

A magnitude M3.5 earthquake was recorded near Aleutians East Borough, Alaska (United States) on September 22, 2026 at 20:50 UTC. With a focal depth of about 35 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Shaking of this size is frequently noticed but usually harmless.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 168 earthquakes, the strongest at M4.3.

Depth profile

Depth profile Depth: 35 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 35 km
Shallow
35 km
35 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

  • Dana
    Distance: 109 km ·Stratovolcano ·Elevation: 1'354 m ·Last eruption: -1890 ·United States
  • Stepovak Bay Group
    Distance: 109 km ·Volcanic field ·Elevation: 1'633 m ·United States
  • Kupreanof
    Distance: 121 km ·Stratovolcano ·Elevation: 1'895 m ·United States
  • Pavlof Sister
    Distance: 130 km ·Stratovolcano ·Elevation: 2'142 m ·United States
  • Pavlof
    Distance: 130 km ·Stratovolcano ·Elevation: 2'493 m ·Last eruption: 2022 ·United States
  • Emmons Lake Volcanic Center
    Distance: 136 km ·Caldera ·Elevation: 1'534 m ·United States

Alaska

Context for this earthquake

30 Sep 2025 – 30 Sep 2026 · M ≥ 3.0 · 652 Catalogue entries

Of 651 other entries for this area and period, 272 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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Country statistics · United States

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