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United States

M4.1 Earthquake near 24 km SW of Skwentna, Alaska (United States)

UTC time: 2025-07-03 22:40:12 UTC Local time: —

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About this earthquake

On July 3, 2025 at 22:40 UTC, a magnitude M4.1 earthquake occurred near 24 km SW of Skwentna, Alaska (United States). The earthquake originated at an intermediate depth of about 99 km. Earthquakes of this magnitude are clearly felt; minor damage to vulnerable buildings is possible.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 189 earthquakes, the strongest at M4.0.

Details

ID
a574afdfca96b1de0a422c2cf0d79cc23912285d
Magnitude
M4.1
Depth
99.1 km
UTC time
2025-07-03 22:40:12 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
61.85140, -151.76470
Temperature
17.4°C

Depth profile

Depth profile Depth: 99.1 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 99.1 km
Intermediate
99.1 km
99.1 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: 41 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Spurr
    Distance: 67 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Redoubt
    Distance: 161 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 215 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Augustine
    Distance: 291 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Buzzard Creek
    Distance: 298 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States

Alaska

Context for this earthquake

22 Sep 2025 – 22 Sep 2026 · M ≥ 3.0 · 656 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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