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United States · Alaska

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

UTC time: 2026-09-29 08:19:41 UTC Local time: —
Magnitude
M1.9
Depth
78.0 km
Source
USGS

Alaska · Matanuska-Susitna Borough

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About this earthquake

On September 29, 2026 at 08:19 UTC, a magnitude M1.9 earthquake occurred near Matanuska-Susitna Borough, Alaska (United States). At around 78 km, the focal depth places this among intermediate-depth events. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: 163 earthquakes were recorded in the past 24 hours, the strongest reaching M4.1.

Depth profile

Depth profile Depth: 78 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 78 km
Intermediate
78 km
78 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: 69 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Spurr
    Distance: 97 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Redoubt
    Distance: 191 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 245 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Buzzard Creek
    Distance: 268 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Augustine
    Distance: 322 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States

Alaska

Context for this earthquake

29 Sep 2025 – 29 Sep 2026 · M ≥ 2.0 · 4,155 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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Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · United States

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

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