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M1.5 Earthquake near 68 km NNE of Port Alsworth, Alaska (United States)

UTC time: 2025-04-25 12:50:23 UTC Local time: —
Magnitude
M1.5
Depth
15.6 km
Source
USGS

68 km NNE of Port Alsworth, Alaska

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About this earthquake

A magnitude M1.5 earthquake was recorded near 68 km NNE of Port Alsworth, Alaska (United States) on April 25, 2025 at 12:50 UTC. With a focal depth of about 16 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by USGS. United States: 149 earthquakes were recorded in the past 24 hours, the strongest reaching M4.0.

Details

ID
5d364e0e1d22c8d485be641291e6e95955bd7d38
Magnitude
M1.5
Depth
15.6 km
UTC time
2025-04-25 12:50:23 UTC
Local time
—
Country
United States
Source
usgs
Coordinates
60.75850, -153.78370
Temperature
-5.3°C

Depth profile

Depth profile Depth: 15.6 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 15.6 km
Shallow
15.6 km
15.6 km — close to the regional average (15.3 km)
Regional average: 15.3 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

  • Redoubt
    Distance: 64 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 89 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Spurr
    Distance: 102 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Hayes
    Distance: 123 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Augustine
    Distance: 156 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Douglas
    Distance: 212 km ·Stratovolcano ·Elevation: 2'140 m ·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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