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United States · Alaska

M3.0 Earthquake near Matanuska-Susitna Borough, Alaska (United States)

UTC time: 2026-09-30 10:31:48 UTC Local time: —
Magnitude
M3.0
Depth
25.3 km
Source
USGS

Alaska · Matanuska-Susitna Borough

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About this earthquake

On September 30, 2026 at 10:31 UTC, a magnitude M3.0 earthquake occurred near Matanuska-Susitna Borough, Alaska (United States). The hypocenter lay relatively close to the surface at around 25 km, increasing how strongly it was felt. Shaking of this size is frequently noticed but usually harmless.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 174 earthquakes, the strongest at M4.3.

Depth profile

Depth profile Depth: 25.3 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 25.3 km
Shallow
25.3 km
25.3 km — deeper than the regional average (15.2 km)
Regional average: 15.2 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

  • Wrangell
    Distance: 188 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Buzzard Creek
    Distance: 229 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Hayes
    Distance: 256 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Spurr
    Distance: 258 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Churchill
    Distance: 317 km ·Stratovolcano ·Elevation: 5'005 m ·Last eruption: 847 ·United States
  • Redoubt
    Distance: 324 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States

Alaska

Context for this earthquake

30 Sep 2025 – 30 Sep 2026 · M ≥ 3.0 · 653 Catalogue entries

Of 652 other entries for this area and period, 550 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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