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M3.4 Depth: 45.0 km

M3.4 Earthquake near 14 km SW of Susitna, Alaska (United States)

UTC time: 2025-08-17 06:50:13 UTC Local time: —

About this earthquake

A magnitude M3.4 earthquake was recorded near 14 km SW of Susitna, Alaska (United States) on August 17, 2025 at 06:50 UTC. With a focal depth of about 45 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Shaking of this size is frequently noticed but usually harmless.

The event was recorded by USGS. United States: 229 earthquakes were recorded in the past 24 hours, the strongest reaching M3.9.

Details

Magnitude
M3.4
Depth
45.0 km
UTC time
2025-08-17 06:50:13 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
61.44000, -150.68360
Temperature
13.9°C

Map

Depth profile

Depth profile Depth: 45 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 45 km
Shallow
45 km
45 km — deeper 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

  • Spurr
    Distance: 85 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Hayes
    Distance: 94 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Redoubt
    Distance: 154 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 204 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Augustine
    Distance: 276 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Buzzard Creek
    Distance: 313 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States

Historic earthquake map · United States

Open history map
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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