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United States · Alaska

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

UTC time: 2026-09-20 06:36:40 UTC Local time: —

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About this earthquake

A magnitude M1.8 earthquake was recorded near Denali Borough, Alaska (United States) on September 20, 2026 at 06:36 UTC. At around 116 km, the focal depth places this among intermediate-depth events. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: 198 earthquakes were recorded in the past 24 hours, the strongest reaching M5.3.

Details

ID
e2b4a44f914935ff7504f7da9db90a2e69b7575e
Magnitude
M1.8
Depth
115.6 km
UTC time
2026-09-20 06:36:40 UTC
Local time
—
Country
United States
State
Alaska
City
Denali Borough
County
Denali Borough
Source
usgs
Coordinates
63.97000, -148.87600
Temperature
5.1°C

Depth profile

Depth profile Depth: 115.6 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 115.6 km
Intermediate
115.6 km
115.6 km — deeper than the regional average (15.2 km)
Regional average: 15.2 km
Why depth matters

Intermediate-depth quakes are felt across a wider area but usually cause less surface damage.

Depth classes per USGS

Volcanoes nearby

  • Buzzard Creek
    Distance: 24 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Hayes
    Distance: 315 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Wrangell
    Distance: 328 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Spurr
    Distance: 343 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Redoubt
    Distance: 436 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Churchill
    Distance: 463 km ·Stratovolcano ·Elevation: 5'005 m ·Last eruption: 847 ·United States

Alaska

Context for this earthquake

20 Sep 2025 – 20 Sep 2026 · M ≥ 2.0 · 4,108 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

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Historic earthquake map · United States

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