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M1.3 Depth: 30.7 km

M1.3 Earthquake near Matanuska-Susitna Borough, Alaska (United States)

UTC time: 2026-08-21 13:08:36 UTC Local time: —

About this earthquake

On August 21, 2026 at 13:08 UTC, a magnitude M1.3 earthquake occurred near Matanuska-Susitna Borough, Alaska (United States). With a focal depth of about 31 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: over the past 24 hours, QuakeMap24 logged 213 earthquakes, the strongest at M3.7.

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Depth profile

Depth profile Depth: 30.7 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 30.7 km
Shallow
30.7 km
30.7 km — deeper than the regional average (15.4 km)
Regional average: 15.4 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: 190 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Hayes
    Distance: 216 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Spurr
    Distance: 227 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Wrangell
    Distance: 239 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Redoubt
    Distance: 304 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 354 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States

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

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

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