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M1.8 Depth: 23.9 km

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

UTC time: 2026-06-23 21:27:00 UTC Local time: —

About this earthquake

On June 23, 2026 at 21:27 UTC, a magnitude M1.8 earthquake occurred near Unorganized Borough, Alaska (United States). The hypocenter lay relatively close to the surface at around 24 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: 204 earthquakes were recorded in the past 24 hours, the strongest reaching M3.9.

Map

Depth profile

Depth profile Depth: 23.9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 23.9 km
Shallow
23.9 km
23.9 km — deeper than 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: 199 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Churchill
    Distance: 282 km ·Stratovolcano ·Elevation: 5'005 m ·Last eruption: 847 ·United States
  • Spurr
    Distance: 293 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Hayes
    Distance: 308 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Redoubt
    Distance: 322 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 352 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·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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