M1.8 Depth: 130.6 km

M1.8 Earthquake near 71 km ENE of Ugashik, Alaska (United States)

UTC time: 2025-08-18 17:25:29 UTC Local time: —

About this earthquake

On August 18, 2025 at 17:25 UTC, a magnitude M1.8 earthquake occurred near 71 km ENE of Ugashik, Alaska (United States). The earthquake originated at an intermediate depth of about 131 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: 220 earthquakes were recorded in the past 24 hours, the strongest reaching M3.3.

Details

Magnitude

M1.8

Depth

130.6 km

UTC time

2025-08-18 17:25:29 UTC

Local time

—

Country

United States

City

Alaska

Source

usgs

Coordinates

57.83980, -156.36530

Temperature

14.3°C

Map

Depth profile

Intermediate

130.6 km

130.6 km — deeper than the regional average (15.4 km)

Regional average: 15.4 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

Ukinrek Maars

Distance: 9 km ·Maar(s) ·Elevation: 91 m ·Last eruption: 1977 ·United States
Ugashik-Peulik

Distance: 10 km ·Stratovolcano ·Elevation: 1'474 m ·Last eruption: 1814 ·United States
Alaska Peninsula Arc at 155.4°W

Distance: 57 km ·Lava dome ·Elevation: 402 m ·United States
Martin

Distance: 70 km ·Stratovolcano ·Elevation: 1'863 m ·Last eruption: 1953 ·United States
Kialagvik

Distance: 74 km ·Stratovolcano ·Elevation: 1'677 m ·United States
Mageik

Distance: 76 km ·Stratovolcano ·Elevation: 2'165 m ·Last eruption: -500 ·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.

Stats (last 24h)

Global (24h)

766

Country (24h)