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M3.1 Depth: 35.0 km

M3.1 Earthquake near SOUTHERN ALASKA (United States)

UTC time: 2025-12-04 19:38:34 UTC Local time: —

About this earthquake

A magnitude M3.1 earthquake was recorded near SOUTHERN ALASKA (United States) on December 4, 2025 at 19:38 UTC. The hypocenter lay relatively close to the surface at around 35 km, increasing how strongly it was felt. Earthquakes of this magnitude are often felt but rarely cause damage.

The data is provided by EMSC and cross-checked across seismological networks. United States: 220 earthquakes were recorded in the past 24 hours, the strongest reaching M5.0.

Details

Magnitude
M3.1
Depth
35.0 km
UTC time
2025-12-04 19:38:34 UTC
Local time
—
Country
United States
City
Alaska
Source
emsc
Coordinates
61.27870, -150.09030
Temperature
-1.1°C

Map

Depth profile

Depth profile Depth: 35 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 35 km
Shallow
35 km
35 km — deeper than the regional average (15.6 km)
Regional average: 15.6 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: 115 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Hayes
    Distance: 130 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Redoubt
    Distance: 168 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 214 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Augustine
    Distance: 282 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Buzzard Creek
    Distance: 321 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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