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M1.6 Depth: 9.1 km

M1.6 Earthquake near 14 km NE of Eielson Air Force Base, Alaska (United States)

UTC time: 2025-09-29 03:40:45 UTC Local time: —

About this earthquake

On September 29, 2025 at 03:40 UTC, a magnitude M1.6 earthquake occurred near 14 km NE of Eielson Air Force Base, Alaska (United States). The hypocenter lay relatively close to the surface at around 9 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 178 earthquakes, the strongest at M3.4.

Details

Magnitude
M1.6
Depth
9.1 km
UTC time
2025-09-29 03:40:45 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
64.73360, -146.81070
Temperature
0.3°C

Map

Depth profile

Depth profile Depth: 9.1 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 9.1 km
Shallow
9.1 km
9.1 km — shallower 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

  • Buzzard Creek
    Distance: 108 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Wrangell
    Distance: 334 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Hayes
    Distance: 444 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Churchill
    Distance: 451 km ·Stratovolcano ·Elevation: 5'005 m ·Last eruption: 847 ·United States
  • Spurr
    Distance: 470 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·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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