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M1.0 Depth: 169.5 km

M1.0 Earthquake near 76 km NW of Karluk, Alaska (United States)

UTC time: 2025-10-17 13:53:00 UTC Local time: —

About this earthquake

On October 17, 2025 at 13:53 UTC, a magnitude M1.0 earthquake occurred near 76 km NW of Karluk, Alaska (United States). The earthquake originated at an intermediate depth of about 170 km. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: 202 earthquakes were recorded in the past 24 hours, the strongest reaching M5.5.

Details

Magnitude
M1.0
Depth
169.5 km
UTC time
2025-10-17 13:53:00 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
57.97030, -155.49900
Temperature
2.2°C

Map

Depth profile

Depth profile Depth: 169.5 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 169.5 km
Intermediate
169.5 km
169.5 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

  • Alaska Peninsula Arc at 155.4°W
    Distance: 12 km ·Lava dome ·Elevation: 402 m ·United States
  • Martin
    Distance: 24 km ·Stratovolcano ·Elevation: 1'863 m ·Last eruption: 1953 ·United States
  • Mageik
    Distance: 29 km ·Stratovolcano ·Elevation: 2'165 m ·Last eruption: -500 ·United States
  • Trident
    Distance: 38 km ·Stratovolcano ·Elevation: 1'864 m ·Last eruption: 1974 ·United States
  • Novarupta
    Distance: 38 km ·Caldera ·Elevation: 841 m ·Last eruption: 1912 ·United States
  • Katmai
    Distance: 47 km ·Stratovolcano ·Elevation: 2'047 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.

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