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United States · Alaska

M1.7 Earthquake near Matanuska-Susitna Borough, Alaska (United States)

UTC time: 2026-09-15 04:21:02 UTC Local time: —
Magnitude
M1.7
Depth
59.1 km
Source
USGS

Alaska · Matanuska-Susitna Borough

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About this earthquake

On September 15, 2026 at 04:21 UTC, a magnitude M1.7 earthquake occurred near Matanuska-Susitna Borough, Alaska (United States). The hypocenter lay relatively close to the surface at around 59 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 177 earthquakes, the strongest at M3.7.

Depth profile

Depth profile Depth: 59.1 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 59.1 km
Shallow
59.1 km
59.1 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

  • Buzzard Creek
    Distance: 163 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Hayes
    Distance: 194 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Spurr
    Distance: 213 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Wrangell
    Distance: 286 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Redoubt
    Distance: 300 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 353 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States

Alaska

Context for this earthquake

15 Sep 2025 – 15 Sep 2026 · M ≥ 2.0 · 4,095 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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View earthquake KPIs, strongest and latest events, and averages for this country.

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