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United States · Alaska

M4.2 Earthquake near Aleutians West Census Area, Alaska (United States)

UTC time: 2026-10-19 16:27:46 UTC Local time: —
Magnitude
M4.2
Depth
52.2 km
Source
USGS

Alaska · Aleutians West Census Area

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About this earthquake

A magnitude M4.2 earthquake was recorded near Aleutians West Census Area, Alaska (United States) on October 19, 2026 at 16:27 UTC. With a focal depth of about 52 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this magnitude are clearly felt; minor damage to vulnerable buildings is possible.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 127 earthquakes, the strongest at M3.7.

Depth profile

Depth profile Depth: 52.2 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 52.2 km
Shallow
52.2 km
52.2 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

Ground shaking

III
Weak · Intensity (MMI) III
Felt by a few, no damage.

Tectonic context

Located on the North America Plate.
Near the boundary North America ↔ Pacific · about 98 km away

Volcanoes nearby

  • Little Sitkin
    Distance: 49 km ·Stratovolcano ·Elevation: 1'174 m ·Last eruption: 1830 ·United States
  • Davidof
    Distance: 50 km ·Stratovolcano ·Elevation: 328 m ·United States
  • Segula
    Distance: 58 km ·Stratovolcano ·Elevation: 1'160 m ·United States
  • Kiska
    Distance: 84 km ·Stratovolcano ·Elevation: 1'220 m ·Last eruption: 1990 ·United States
  • Semisopochnoi
    Distance: 95 km ·Stratovolcano ·Elevation: 1'221 m ·Last eruption: 2023 ·United States
  • Buldir
    Distance: 192 km ·Stratovolcano ·Elevation: 656 m ·United States

Alaska

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 3.0 · 653 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

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