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United States · Alaska

M2.8 Earthquake near Matanuska-Susitna Borough, Alaska (United States)

UTC time: 2026-09-27 03:38:12 UTC Local time: —
Magnitude
M2.8
Depth
50.1 km
Source
USGS

Alaska · Matanuska-Susitna Borough

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About this earthquake

A magnitude M2.8 earthquake was recorded near Matanuska-Susitna Borough, Alaska (United States) on September 27, 2026 at 03:38 UTC. With a focal depth of about 50 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 133 earthquakes, the strongest at M3.1.

Depth profile

Depth profile Depth: 50.1 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 50.1 km
Shallow
50.1 km
50.1 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

  • Spurr
    Distance: 98 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Hayes
    Distance: 113 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Redoubt
    Distance: 155 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 203 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Augustine
    Distance: 272 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Douglas
    Distance: 322 km ·Stratovolcano ·Elevation: 2'140 m ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Ted Stevens Anchorage International AirportUnited States · ANC · PANC
    26.0 kmStraight-line distance
  • Merrill FieldUnited States · MRI · PAMR
    31.8 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-27

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

Alaska

Context for this earthquake

27 Sep 2025 – 27 Sep 2026 · M ≥ 2.0 · 4,143 Catalogue entries

Of 4,142 other entries for this area and period, 776 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

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

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