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M1.8 Depth: 128.4 km

M1.8 Earthquake near 79 km ENE of Ugashik, Alaska (United States)

UTC time: 2025-12-05 09:45:07 UTC Local time: —

About this earthquake

A magnitude M1.8 earthquake was recorded near 79 km ENE of Ugashik, Alaska (United States) on December 5, 2025 at 09:45 UTC. The earthquake originated at an intermediate depth of about 128 km. 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: over the past 24 hours, QuakeMap24 logged 225 earthquakes, the strongest at M5.0.

Details

Magnitude
M1.8
Depth
128.4 km
UTC time
2025-12-05 09:45:07 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
57.83604, -156.21342
Temperature
-0.9°C

Map

Depth profile

Depth profile Depth: 128.4 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 128.4 km
Intermediate
128.4 km
128.4 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

  • Ugashik-Peulik
    Distance: 13 km ·Stratovolcano ·Elevation: 1'474 m ·Last eruption: 1814 ·United States
  • Ukinrek Maars
    Distance: 18 km ·Maar(s) ·Elevation: 91 m ·Last eruption: 1977 ·United States
  • Alaska Peninsula Arc at 155.4°W
    Distance: 48 km ·Lava dome ·Elevation: 402 m ·United States
  • Martin
    Distance: 63 km ·Stratovolcano ·Elevation: 1'863 m ·Last eruption: 1953 ·United States
  • Mageik
    Distance: 69 km ·Stratovolcano ·Elevation: 2'165 m ·Last eruption: -500 ·United States
  • Kialagvik
    Distance: 77 km ·Stratovolcano ·Elevation: 1'677 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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