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United States · Alaska

M1.6 Earthquake near Matanuska-Susitna Borough, Alaska (United States)

UTC time: 2026-09-16 19:24:49 UTC Local time: —
Magnitude
M1.6
Depth
70.3 km
Source
USGS

Alaska · Matanuska-Susitna Borough

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About this earthquake

A magnitude M1.6 earthquake was recorded near Matanuska-Susitna Borough, Alaska (United States) on September 16, 2026 at 19:24 UTC. The earthquake originated at an intermediate depth of about 70 km. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: 181 earthquakes were recorded in the past 24 hours, the strongest reaching M5.2.

Depth profile

Depth profile Depth: 70.3 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 70.3 km
Intermediate
70.3 km
70.3 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: 111 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Spurr
    Distance: 137 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Buzzard Creek
    Distance: 227 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Redoubt
    Distance: 230 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 284 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Augustine
    Distance: 360 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States

Alaska

Context for this earthquake

16 Sep 2025 – 16 Sep 2026 · M ≥ 2.0 · 4,101 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

Open seismic profile

Historic earthquake map · United States

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Country statistics · United States

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