M1.8 Depth: 70.8 km

M1.8 Earthquake near 36 km NNW of Karluk, Alaska (United States)

UTC time: 2025-08-27 21:00:01 UTC Local time: —

About this earthquake

On August 27, 2025 at 21:00 UTC, a magnitude M1.8 earthquake occurred near 36 km NNW of Karluk, Alaska (United States). The earthquake originated at an intermediate depth of about 71 km. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 231 earthquakes, the strongest at M3.9.

Details

Magnitude

M1.8

Depth

70.8 km

UTC time

2025-08-27 21:00:01 UTC

Local time

—

Country

United States

City

Alaska

Source

usgs

Coordinates

57.89000, -154.60340

Temperature

14.8°C

Map

Depth profile

Intermediate

70.8 km

70.8 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: 48 km ·Lava dome ·Elevation: 402 m ·United States
Katmai

Distance: 48 km ·Stratovolcano ·Elevation: 2'047 m ·Last eruption: 1912 ·United States
Trident

Distance: 48 km ·Stratovolcano ·Elevation: 1'864 m ·Last eruption: 1974 ·United States
Snowy Mountain

Distance: 50 km ·Stratovolcano(es) ·Elevation: 2'162 m ·Last eruption: 1710 ·United States
Mageik

Distance: 51 km ·Stratovolcano ·Elevation: 2'165 m ·Last eruption: -500 ·United States
Novarupta

Distance: 53 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)

990

Country (24h)