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M0.4 Depth: 14.9 km

M0.4 Earthquake near 22 km N of Four Mile Road, Alaska (United States)

UTC time: 2025-08-18 17:15:20 UTC Local time: —

About this earthquake

A magnitude M0.4 earthquake was recorded near 22 km N of Four Mile Road, Alaska (United States) on August 18, 2025 at 17:15 UTC. With a focal depth of about 15 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: 220 earthquakes were recorded in the past 24 hours, the strongest reaching M3.3.

Details

Magnitude
M0.4
Depth
14.9 km
UTC time
2025-08-18 17:15:20 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
64.80040, -149.06580
Temperature
15.6°C

Map

Depth profile

Depth profile Depth: 14.9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 14.9 km
Shallow
14.9 km
14.9 km — close to 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: 88 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Hayes
    Distance: 389 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Wrangell
    Distance: 399 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Spurr
    Distance: 421 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·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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