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M1.8 Depth: 25.9 km

M1.8 Earthquake near Unorganized Borough, Alaska (United States)

UTC time: 2026-08-13 03:53:15 UTC Local time: —

About this earthquake

A magnitude M1.8 earthquake was recorded near Unorganized Borough, Alaska (United States) on August 13, 2026 at 03:53 UTC. The hypocenter lay relatively close to the surface at around 26 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 185 earthquakes, the strongest at M3.4.

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Depth profile

Depth profile Depth: 25.9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 25.9 km
Shallow
25.9 km
25.9 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

  • Spurr
    Distance: 245 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Wrangell
    Distance: 248 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Hayes
    Distance: 264 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Redoubt
    Distance: 268 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 298 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Churchill
    Distance: 336 km ·Stratovolcano ·Elevation: 5'005 m ·Last eruption: 847 ·United States

Historic earthquake map · United States

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Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · United States

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

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