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M1.8 Depth: 17.5 km

M1.8 Earthquake near Matanuska-Susitna Borough, Alaska (United States)

UTC time: 2026-04-28 03:23:42 UTC Local time: —

About this earthquake

A magnitude M1.8 earthquake was recorded near Matanuska-Susitna Borough, Alaska (United States) on April 28, 2026 at 03:23 UTC. The hypocenter lay relatively close to the surface at around 18 km, increasing how strongly it was felt. 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: 140 earthquakes were recorded in the past 24 hours, the strongest reaching M2.9.

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Depth profile

Depth profile Depth: 17.5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 17.5 km
Shallow
17.5 km
17.5 km — close to the regional average (15.9 km)
Regional average: 15.9 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: 137 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Spurr
    Distance: 141 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Redoubt
    Distance: 216 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Buzzard Creek
    Distance: 258 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Iliamna
    Distance: 266 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Wrangell
    Distance: 305 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States

Historic earthquake map · United States

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Country statistics · United States

Country overview
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