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United States · Alaska

M2.4 Earthquake near Matanuska-Susitna Borough, Alaska (United States)

UTC time: 2026-10-04 04:31:28 UTC Local time: —
Magnitude
M2.4
Depth
90.2 km
Source
USGS

Alaska · Matanuska-Susitna Borough

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About this earthquake

On October 4, 2026 at 04:31 UTC, a magnitude M2.4 earthquake occurred near Matanuska-Susitna Borough, Alaska (United States). The earthquake originated at an intermediate depth of about 90 km. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 163 earthquakes, the strongest at M3.9.

Depth profile

Depth profile Depth: 90.2 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 90.2 km
Intermediate
90.2 km
90.2 km — deeper than the regional average (15.2 km)
Regional average: 15.2 km
Why depth matters

Intermediate-depth quakes are felt across a wider area but usually cause less surface damage.

Depth classes per USGS

Volcanoes nearby

  • Hayes
    Distance: 75 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Spurr
    Distance: 98 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Redoubt
    Distance: 190 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 244 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Buzzard Creek
    Distance: 266 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Augustine
    Distance: 321 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States

Alaska

Context for this earthquake

04 Oct 2025 – 04 Oct 2026 · M ≥ 2.0 · 4,146 Catalogue entries

Of 4,145 other entries for this area and period, 1,616 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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