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United States · Alaska

M3.4 Earthquake near Matanuska-Susitna Borough, Alaska (United States)

UTC time: 2026-09-07 18:01:15 UTC Local time: —
Magnitude
M3.4
Depth
85.5 km
Source
USGS

Alaska · Matanuska-Susitna Borough

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About this earthquake

A magnitude M3.4 earthquake was recorded near Matanuska-Susitna Borough, Alaska (United States) on September 7, 2026 at 18:01 UTC. At around 86 km, the focal depth places this among intermediate-depth events. 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 159 earthquakes, the strongest at M3.5.

Depth profile

Depth profile Depth: 85.5 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 85.5 km
Intermediate
85.5 km
85.5 km — deeper than the regional average (15.3 km)
Regional average: 15.3 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

  • Buzzard Creek
    Distance: 122 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Hayes
    Distance: 222 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Spurr
    Distance: 245 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Wrangell
    Distance: 296 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Redoubt
    Distance: 335 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 389 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States

Alaska

Context for this earthquake

07 Sep 2025 – 07 Sep 2026 · M ≥ 3.0 · 653 Catalogue entries

Of 652 other entries for this area and period, 320 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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