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United States · Alaska

M1.8 Earthquake near Matanuska-Susitna Borough, Alaska (United States)

UTC time: 2026-10-22 08:20:11 UTC Local time: —
Magnitude
M1.8
Depth
47.1 km
Source
USGS

Alaska · Matanuska-Susitna Borough

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About this earthquake

On October 22, 2026 at 08:20 UTC, a magnitude M1.8 earthquake occurred near Matanuska-Susitna Borough, Alaska (United States). The hypocenter lay relatively close to the surface at around 47 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: 147 earthquakes were recorded in the past 24 hours, the strongest reaching M3.7.

Depth profile

Depth profile Depth: 47.1 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 47.1 km
Shallow
47.1 km
47.1 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

Volcanoes nearby

  • Hayes
    Distance: 138 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Spurr
    Distance: 147 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Redoubt
    Distance: 228 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Buzzard Creek
    Distance: 238 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Iliamna
    Distance: 280 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Wrangell
    Distance: 308 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·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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