Back to map
M3.5 Depth: 4.9 km

M3.5 Earthquake near 47 km SSW of Ugashik, Alaska (United States)

UTC time: 2025-12-16 17:43:45 UTC Local time: —

About this earthquake

On December 16, 2025 at 17:43 UTC, a magnitude M3.5 earthquake occurred near 47 km SSW of Ugashik, Alaska (United States). With a focal depth of about 5 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this magnitude are often felt but rarely cause damage.

The event was recorded by USGS. United States: 226 earthquakes were recorded in the past 24 hours, the strongest reaching M5.3.

Details

Magnitude
M3.5
Depth
4.9 km
UTC time
2025-12-16 17:43:45 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
57.10200, -157.59000
Temperature
-9.7°C

Map

Depth profile

Depth profile Depth: 4.9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 4.9 km
Shallow
4.9 km
4.9 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

  • Yantarni
    Distance: 26 km ·Stratovolcano ·Elevation: 1'345 m ·Last eruption: -800 ·United States
  • Chiginagak
    Distance: 36 km ·Stratovolcano ·Elevation: 2'221 m ·Last eruption: 1998 ·United States
  • Aniakchak
    Distance: 43 km ·Caldera ·Elevation: 1'341 m ·Last eruption: 1931 ·United States
  • Kialagvik
    Distance: 52 km ·Stratovolcano ·Elevation: 1'677 m ·United States
  • Black Peak
    Distance: 95 km ·Stratovolcano ·Elevation: 1'032 m ·Last eruption: -1900 ·United States
  • Ugashik-Peulik
    Distance: 103 km ·Stratovolcano ·Elevation: 1'474 m ·Last eruption: 1814 ·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.

Share