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M1.2 Depth: 21.8 km

M1.2 Earthquake near Unorganized Borough, Alaska (United States)

UTC time: 2026-04-20 17:30:31 UTC Local time: —

About this earthquake

On April 20, 2026 at 17:30 UTC, a magnitude M1.2 earthquake occurred near Unorganized Borough, Alaska (United States). The hypocenter lay relatively close to the surface at around 22 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: 156 earthquakes were recorded in the past 24 hours, the strongest reaching M3.9.

Map

Depth profile

Depth profile Depth: 21.8 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 21.8 km
Shallow
21.8 km
21.8 km — deeper than the regional average (15.8 km)
Regional average: 15.8 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

  • Spurr
    Distance: 216 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Hayes
    Distance: 230 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Wrangell
    Distance: 246 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Redoubt
    Distance: 253 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 289 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Buzzard Creek
    Distance: 331 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·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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