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United States · Alaska

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

UTC time: 2026-08-23 09:30:33 UTC Local time: —
Magnitude
M1.6
Depth
78.9 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 August 23, 2026 at 09:30 UTC. The earthquake originated at an intermediate depth of about 79 km. 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: over the past 24 hours, QuakeMap24 logged 181 earthquakes, the strongest at M4.1.

Depth profile

Depth profile Depth: 78.9 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 78.9 km
Intermediate
78.9 km
78.9 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

  • Buzzard Creek
    Distance: 128 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Hayes
    Distance: 213 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Spurr
    Distance: 237 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Wrangell
    Distance: 306 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Redoubt
    Distance: 328 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 382 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States

Alaska

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 2.0 · 4,148 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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