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M3.3 Depth: 57.6 km

M3.3 Earthquake near Matanuska-Susitna Borough, Alaska (United States)

UTC time: 2026-08-04 09:45:40 UTC Local time: —

About this earthquake

A magnitude M3.3 earthquake was recorded near Matanuska-Susitna Borough, Alaska (United States) on August 4, 2026 at 09:45 UTC. The hypocenter lay relatively close to the surface at around 58 km, increasing how strongly it was felt. Shaking of this size is frequently noticed but usually harmless.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 169 earthquakes, the strongest at M3.3.

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Depth profile

Depth profile Depth: 57.6 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 57.6 km
Shallow
57.6 km
57.6 km — deeper than the regional average (15.5 km)
Regional average: 15.5 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: 184 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Hayes
    Distance: 191 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Spurr
    Distance: 205 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Wrangell
    Distance: 271 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Redoubt
    Distance: 288 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 340 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States

Historic earthquake map · United States

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Country statistics · United States

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

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