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M1.3 Depth: 20.4 km

M1.3 Earthquake near Unorganized Borough, Alaska (United States)

UTC time: 2026-08-09 16:39:32 UTC Local time: —

About this earthquake

A magnitude M1.3 earthquake was recorded near Unorganized Borough, Alaska (United States) on August 9, 2026 at 16:39 UTC. The hypocenter lay relatively close to the surface at around 20 km, increasing how strongly it was felt. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by USGS. United States: 208 earthquakes were recorded in the past 24 hours, the strongest reaching M5.0.

Map

Depth profile

Depth profile Depth: 20.4 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 20.4 km
Shallow
20.4 km
20.4 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

  • Wrangell
    Distance: 248 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Spurr
    Distance: 279 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Redoubt
    Distance: 294 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Hayes
    Distance: 300 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Iliamna
    Distance: 319 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Churchill
    Distance: 320 km ·Stratovolcano ·Elevation: 5'005 m ·Last eruption: 847 ·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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