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United States

M1.0 Earthquake near 61 km SW of Skwentna, Alaska (United States)

UTC time: 2025-08-08 00:28:39 UTC Local time: —

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About this earthquake

A magnitude M1.0 earthquake was recorded near 61 km SW of Skwentna, Alaska (United States) on August 8, 2025 at 00:28 UTC. At around 84 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: 189 earthquakes were recorded in the past 24 hours, the strongest reaching M4.0.

Details

ID
869ea831b71e55a518d8c43c6828ac45468fa1ef
Magnitude
M1.0
Depth
83.9 km
UTC time
2025-08-08 00:28:39 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
61.61430, -152.24750
Temperature
4.7°C

Depth profile

Depth profile Depth: 83.9 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 83.9 km
Intermediate
83.9 km
83.9 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

  • Hayes
    Distance: 9 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Spurr
    Distance: 35 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Redoubt
    Distance: 128 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 182 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Augustine
    Distance: 259 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Douglas
    Distance: 315 km ·Stratovolcano ·Elevation: 2'140 m ·United States

Alaska

Context for this earthquake

22 Sep 2025 – 22 Sep 2026 · M ≥ 2.0 · 4,126 Catalogue entries

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

Open seismic profile

Historic earthquake map · United States

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Country statistics · United States

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