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M3.2 Depth: 10.0 km

M3.2 Earthquake near SOUTHEASTERN ALASKA (United States)

UTC time: 2025-12-21 04:46:21 UTC Local time: —

About this earthquake

A magnitude M3.2 earthquake was recorded near SOUTHEASTERN ALASKA (United States) on December 21, 2025 at 04:46 UTC. The hypocenter lay relatively close to the surface at around 10 km, increasing how strongly it was felt. Shaking of this size is frequently noticed but usually harmless.

The data is provided by EMSC and cross-checked across seismological networks. United States: 229 earthquakes were recorded in the past 24 hours, the strongest reaching M6.0.

Details

Magnitude
M3.2
Depth
10.0 km
UTC time
2025-12-21 04:46:21 UTC
Local time
—
Country
United States
City
Alaska
Source
emsc
Coordinates
58.29990, -136.80920
Temperature
-12.5°C

Map

Depth profile

Depth profile Depth: 10 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 10 km
Shallow
10 km
10 km — shallower than the regional average (15.7 km)
Regional average: 15.7 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

  • Edgecumbe
    Distance: 153 km ·Volcanic field ·Elevation: 970 m ·Last eruption: -2080 ·United States
  • Alligator Lake
    Distance: 249 km ·Volcanic field ·Elevation: 2'217 m ·Canada
  • Atlin Volcanic Field
    Distance: 252 km ·Pyroclastic cone(s) ·Elevation: 1'880 m ·Canada
  • Heart Peaks
    Distance: 283 km ·Shield ·Elevation: 2'012 m ·Canada
  • Duncan Canal
    Distance: 299 km ·Volcanic field ·Elevation: 15 m ·United States
  • Level Mountain
    Distance: 319 km ·Shield ·Elevation: 2'164 m ·Canada

Historic earthquake map · United States

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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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