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United States

M0.8 Earthquake near 86 km NW of Karluk, Alaska (United States)

UTC time: 2025-04-23 11:15:22 UTC Local time: —

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About this earthquake

On April 23, 2025 at 11:15 UTC, a magnitude M0.8 earthquake occurred near 86 km NW of Karluk, Alaska (United States). The hypocenter lay relatively close to the surface at around 16 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: 146 earthquakes were recorded in the past 24 hours, the strongest reaching M4.0.

Details

ID
ff2829d06eef7c99944660d225c15c73aefa0bd6
Magnitude
M0.8
Depth
16.3 km
UTC time
2025-04-23 11:15:22 UTC
Local time
—
Country
United States
Source
usgs
Coordinates
58.11330, -155.49760
Temperature
-1.5°C

Depth profile

Depth profile Depth: 16.3 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 16.3 km
Shallow
16.3 km
16.3 km — close to the regional average (15.3 km)
Regional average: 15.3 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

  • Martin
    Distance: 10 km ·Stratovolcano ·Elevation: 1'863 m ·Last eruption: 1953 ·United States
  • Mageik
    Distance: 17 km ·Stratovolcano ·Elevation: 2'165 m ·Last eruption: -500 ·United States
  • Novarupta
    Distance: 26 km ·Caldera ·Elevation: 841 m ·Last eruption: 1912 ·United States
  • Trident
    Distance: 27 km ·Stratovolcano ·Elevation: 1'864 m ·Last eruption: 1974 ·United States
  • Alaska Peninsula Arc at 155.4°W
    Distance: 28 km ·Lava dome ·Elevation: 402 m ·United States
  • Griggs
    Distance: 36 km ·Stratovolcano ·Elevation: 2'317 m ·Last eruption: -1790 ·United States

United States

Context for this earthquake

06 Sep 2025 – 06 Sep 2026 · M ≥ 2.0 · 11,559 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

Open seismic profile

Historic earthquake map · United States

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Country statistics · United States

Country overview
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