M3.1 Depth: 35.0 km

M3.1 Earthquake near KODIAK ISLAND REGION, ALASKA (United States)

UTC time: 2025-08-31 16:05:15 UTC Local time: —

About this earthquake

A magnitude M3.1 earthquake was recorded near KODIAK ISLAND REGION, ALASKA (United States) on August 31, 2025 at 16:05 UTC. With a focal depth of about 35 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Shaking of this size is frequently noticed but usually harmless.

The event was recorded by EMSC. United States: 238 earthquakes were recorded in the past 24 hours, the strongest reaching M3.9.

Details

Magnitude

M3.1

Depth

35.0 km

UTC time

2025-08-31 16:05:15 UTC

Local time

—

Country

United States

City

Alaska

Source

emsc

Coordinates

57.41660, -153.19810

Temperature

10.9°C

Map

Depth profile

Shallow

35 km

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

Regional average: 15.4 km

Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Volcanoes nearby

Steller

Distance: 133 km ·Stratovolcano ·Elevation: 2'279 m ·United States
Denison

Distance: 134 km ·Stratovolcano ·Elevation: 2'287 m ·United States
Kukak

Distance: 134 km ·Stratovolcano ·Elevation: 2'043 m ·United States
Snowy Mountain

Distance: 135 km ·Stratovolcano(es) ·Elevation: 2'162 m ·Last eruption: 1710 ·United States
Alaska Peninsula Arc at 155.4°W

Distance: 141 km ·Lava dome ·Elevation: 402 m ·United States
Katmai

Distance: 141 km ·Stratovolcano ·Elevation: 2'047 m ·Last eruption: 1912 ·United States

Historic earthquake map · United States

Open history map

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Country statistics · United States

Country overview

View earthquake KPIs, strongest and latest events, and averages for this country.

Stats (last 24h)

Global (24h)

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Country (24h)