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United States · Alaska

M2.1 Earthquake near Matanuska-Susitna Borough, Alaska (United States)

UTC time: 2026-09-22 16:58:32 UTC Local time: —
Magnitude
M2.1
Depth
84.2 km
Source
USGS

Alaska · Matanuska-Susitna Borough

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About this earthquake

On September 22, 2026 at 16:58 UTC, a magnitude M2.1 earthquake occurred near Matanuska-Susitna Borough, Alaska (United States). At around 84 km, the focal depth places this among intermediate-depth events. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by USGS. United States: 167 earthquakes were recorded in the past 24 hours, the strongest reaching M4.0.

Depth profile

Depth profile Depth: 84.2 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 84.2 km
Intermediate
84.2 km
84.2 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: 153 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Spurr
    Distance: 184 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Buzzard Creek
    Distance: 184 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Redoubt
    Distance: 278 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 331 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Wrangell
    Distance: 366 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States

Alaska

Context for this earthquake

22 Sep 2025 – 22 Sep 2026 · M ≥ 2.0 · 4,122 Catalogue entries

Of 4,121 other entries for this area and period, 2,896 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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