M1.8 Depth: 99.2 km

M1.8 Earthquake near 7 km ENE of Ugashik, Alaska (United States)

UTC time: 2025-09-13 09:20:21 UTC Local time: —

About this earthquake

On September 13, 2025 at 09:20 UTC, a magnitude M1.8 earthquake occurred near 7 km ENE of Ugashik, Alaska (United States). At around 99 km, the focal depth places this among intermediate-depth events. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: 175 earthquakes were recorded in the past 24 hours, the strongest reaching M3.9.

Details

Magnitude

M1.8

Depth

99.2 km

UTC time

2025-09-13 09:20:21 UTC

Local time

—

Country

United States

City

Alaska

Source

usgs

Coordinates

57.54510, -157.28780

Temperature

5.6°C

Map

Depth profile

Intermediate

99.2 km

99.2 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

Chiginagak

Distance: 49 km ·Stratovolcano ·Elevation: 2'221 m ·Last eruption: 1998 ·United States
Kialagvik

Distance: 50 km ·Stratovolcano ·Elevation: 1'677 m ·United States
Ukinrek Maars

Distance: 56 km ·Maar(s) ·Elevation: 91 m ·Last eruption: 1977 ·United States
Yantarni

Distance: 59 km ·Stratovolcano ·Elevation: 1'345 m ·Last eruption: -800 ·United States
Ugashik-Peulik

Distance: 59 km ·Stratovolcano ·Elevation: 1'474 m ·Last eruption: 1814 ·United States
Aniakchak

Distance: 91 km ·Caldera ·Elevation: 1'341 m ·Last eruption: 1931 ·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)

962

Country (24h)