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United States · Alaska

M2.2 Earthquake near Matanuska-Susitna Borough, Alaska (United States)

UTC time: 2026-09-17 02:51:40 UTC Local time: —
Magnitude
M2.2
Depth
48.9 km
Source
USGS

Alaska · Matanuska-Susitna Borough

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About this earthquake

A magnitude M2.2 earthquake was recorded near Matanuska-Susitna Borough, Alaska (United States) on September 17, 2026 at 02:51 UTC. With a focal depth of about 49 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: 166 earthquakes were recorded in the past 24 hours, the strongest reaching M6.5.

Depth profile

Depth profile Depth: 48.9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 48.9 km
Shallow
48.9 km
48.9 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: 94 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Hayes
    Distance: 111 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Redoubt
    Distance: 147 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 194 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Augustine
    Distance: 263 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Douglas
    Distance: 313 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
    27.8 kmStraight-line distance
  • Merrill FieldUnited States · MRI · PAMR
    35.3 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-17

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

17 Sep 2025 – 17 Sep 2026 · M ≥ 2.0 · 4,099 Catalogue entries

Of 4,098 other entries for this area and period, 2,341 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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