M1.8 Depth: 118.9 km

M1.8 Earthquake near 86 km SSE of King Salmon, Alaska (United States)

UTC time: 2025-09-03 10:59:34 UTC Local time: —

About this earthquake

A magnitude M1.8 earthquake was recorded near 86 km SSE of King Salmon, Alaska (United States) on September 3, 2025 at 10:59 UTC. At around 119 km, the focal depth places this among intermediate-depth events. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 241 earthquakes, the strongest at M3.5.

Details

Magnitude

M1.8

Depth

118.9 km

UTC time

2025-09-03 10:59:34 UTC

Local time

—

Country

United States

City

Alaska

Source

usgs

Coordinates

58.03840, -155.86690

Temperature

12.9°C

Map

Depth profile

Intermediate

118.9 km

118.9 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

Alaska Peninsula Arc at 155.4°W

Distance: 33 km ·Lava dome ·Elevation: 402 m ·United States
Martin

Distance: 33 km ·Stratovolcano ·Elevation: 1'863 m ·Last eruption: 1953 ·United States
Mageik

Distance: 40 km ·Stratovolcano ·Elevation: 2'165 m ·Last eruption: -500 ·United States
Ugashik-Peulik

Distance: 44 km ·Stratovolcano ·Elevation: 1'474 m ·Last eruption: 1814 ·United States
Ukinrek Maars

Distance: 45 km ·Maar(s) ·Elevation: 91 m ·Last eruption: 1977 ·United States
Novarupta

Distance: 49 km ·Caldera ·Elevation: 841 m ·Last eruption: 1912 ·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)

1032

Country (24h)