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M3.8 Depth: 166.4 km

M3.8 Earthquake near 268 km W of Adak, Alaska (United States)

UTC time: 2025-12-07 15:58:37 UTC Local time: —

About this earthquake

On December 7, 2025 at 15:58 UTC, a magnitude M3.8 earthquake occurred near 268 km W of Adak, Alaska (United States). The earthquake originated at an intermediate depth of about 166 km. Earthquakes of this magnitude are often felt but rarely cause damage.

The event was recorded by USGS. United States: 209 earthquakes were recorded in the past 24 hours, the strongest reaching M5.1.

Details

Magnitude
M3.8
Depth
166.4 km
UTC time
2025-12-07 15:58:37 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
52.01429, 179.47293
Temperature
4.5°C

Map

Depth profile

Depth profile Depth: 166.4 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 166.4 km
Intermediate
166.4 km
166.4 km — deeper than the regional average (15.6 km)
Regional average: 15.6 km
Why depth matters

Intermediate-depth quakes are felt across a wider area but usually cause less surface damage.

Depth classes per USGS

Volcanoes nearby

  • Semisopochnoi
    Distance: 12 km ·Stratovolcano ·Elevation: 1'221 m ·Last eruption: 2023 ·United States
  • Little Sitkin
    Distance: 64 km ·Stratovolcano ·Elevation: 1'174 m ·Last eruption: 1830 ·United States
  • Davidof
    Distance: 78 km ·Stratovolcano ·Elevation: 328 m ·United States
  • Segula
    Distance: 91 km ·Stratovolcano ·Elevation: 1'160 m ·United States
  • Kiska
    Distance: 128 km ·Stratovolcano ·Elevation: 1'220 m ·Last eruption: 1990 ·United States
  • Buldir
    Distance: 246 km ·Stratovolcano ·Elevation: 656 m ·United States

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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