M3.9 Depth: 152.5 km

M3.9 Earthquake near 58 km SSE of King Salmon, Alaska (United States)

UTC time: 2025-10-16 16:39:40 UTC Local time: —

About this earthquake

A magnitude M3.9 earthquake was recorded near 58 km SSE of King Salmon, Alaska (United States) on October 16, 2025 at 16:39 UTC. At around 153 km, the focal depth places this among intermediate-depth events. Shaking of this size is frequently noticed but usually harmless.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 200 earthquakes, the strongest at M5.5.

Details

Magnitude

M3.9

Depth

152.5 km

UTC time

2025-10-16 16:39:40 UTC

Local time

—

Country

United States

City

Alaska

Source

usgs

Coordinates

58.19710, -156.28830

Temperature

7.2°C

Map

Depth profile

Intermediate

152.5 km

152.5 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: 43 km ·Maar(s) ·Elevation: 91 m ·Last eruption: 1977 ·United States
Ugashik-Peulik

Distance: 50 km ·Stratovolcano ·Elevation: 1'474 m ·Last eruption: 1814 ·United States
Martin

Distance: 54 km ·Stratovolcano ·Elevation: 1'863 m ·Last eruption: 1953 ·United States
Mageik

Distance: 61 km ·Stratovolcano ·Elevation: 2'165 m ·Last eruption: -500 ·United States
Alaska Peninsula Arc at 155.4°W

Distance: 63 km ·Lava dome ·Elevation: 402 m ·United States
Novarupta

Distance: 67 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)

591

Country (24h)