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M1.1 Depth: 17.5 km

M1.1 Earthquake near Unorganized Borough, Alaska (United States)

UTC time: 2026-04-04 18:24:28 UTC Local time: —

About this earthquake

On April 4, 2026 at 18:24 UTC, a magnitude M1.1 earthquake occurred near Unorganized Borough, Alaska (United States). With a focal depth of about 18 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: 200 earthquakes were recorded in the past 24 hours, the strongest reaching M5.8.

Map

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

  • Wrangell
    Distance: 211 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Spurr
    Distance: 245 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Hayes
    Distance: 256 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Redoubt
    Distance: 288 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Churchill
    Distance: 316 km ·Stratovolcano ·Elevation: 5'005 m ·Last eruption: 847 ·United States
  • Buzzard Creek
    Distance: 316 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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