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M1.6 Depth: 35.1 km

M1.6 Earthquake near 9 km NE of Susitna, Alaska (United States)

UTC time: 2025-05-31 06:31:48 UTC Local time: —

About this earthquake

On May 31, 2025 at 06:31 UTC, a magnitude M1.6 earthquake occurred near 9 km NE of Susitna, Alaska (United States). With a focal depth of about 35 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: over the past 24 hours, QuakeMap24 logged 168 earthquakes, the strongest at M3.3.

Details

Magnitude
M1.6
Depth
35.1 km
UTC time
2025-05-31 06:31:48 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
61.60920, -150.38900
Temperature
5.4°C

Map

Depth profile

Depth profile Depth: 35.1 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 35.1 km
Shallow
35.1 km
35.1 km — deeper than 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

  • Spurr
    Distance: 105 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Hayes
    Distance: 107 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Redoubt
    Distance: 178 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 228 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Buzzard Creek
    Distance: 290 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Augustine
    Distance: 300 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·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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