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M3.0 Depth: 21.3 km

M3.0 Earthquake near 8 km NNW of Larsen Bay, Alaska (United States)

UTC time: 2025-12-01 03:31:48 UTC Local time: —

About this earthquake

A magnitude M3.0 earthquake was recorded near 8 km NNW of Larsen Bay, Alaska (United States) on December 1, 2025 at 03:31 UTC. The hypocenter lay relatively close to the surface at around 21 km, increasing how strongly it was felt. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The data is provided by USGS and cross-checked across seismological networks. United States: 192 earthquakes were recorded in the past 24 hours, the strongest reaching M3.1.

Details

Magnitude
M3.0
Depth
21.3 km
UTC time
2025-12-01 03:31:48 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
57.60432, -154.04317
Temperature
1.5°C

Map

Depth profile

Depth profile Depth: 21.3 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 21.3 km
Shallow
21.3 km
21.3 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

  • Alaska Peninsula Arc at 155.4°W
    Distance: 86 km ·Lava dome ·Elevation: 402 m ·United States
  • Snowy Mountain
    Distance: 90 km ·Stratovolcano(es) ·Elevation: 2'162 m ·Last eruption: 1710 ·United States
  • Katmai
    Distance: 92 km ·Stratovolcano ·Elevation: 2'047 m ·Last eruption: 1912 ·United States
  • Denison
    Distance: 94 km ·Stratovolcano ·Elevation: 2'287 m ·United States
  • Trident
    Distance: 94 km ·Stratovolcano ·Elevation: 1'864 m ·Last eruption: 1974 ·United States
  • Steller
    Distance: 94 km ·Stratovolcano ·Elevation: 2'279 m ·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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