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United States · Alaska

M1.9 Earthquake near Matanuska-Susitna Borough, Alaska (United States)

UTC time: 2026-09-17 06:42:59 UTC Local time: —
Magnitude
M1.9
Depth
42.9 km
Source
USGS

Alaska · Matanuska-Susitna Borough

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About this earthquake

On September 17, 2026 at 06:42 UTC, a magnitude M1.9 earthquake occurred near Matanuska-Susitna Borough, Alaska (United States). With a focal depth of about 43 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: 180 earthquakes were recorded in the past 24 hours, the strongest reaching M5.2.

Depth profile

Depth profile Depth: 42.9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 42.9 km
Shallow
42.9 km
42.9 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

  • Hayes
    Distance: 216 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Spurr
    Distance: 219 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
  • Wrangell
    Distance: 228 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Redoubt
    Distance: 289 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 336 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States

Alaska

Context for this earthquake

17 Sep 2025 – 17 Sep 2026 · M ≥ 2.0 · 4,100 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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