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M1.1 Depth: 46.1 km

M1.1 Earthquake near 24 km NNW of Karluk, Alaska (United States)

UTC time: 2025-08-04 19:38:59 UTC Local time: —

About this earthquake

A magnitude M1.1 earthquake was recorded near 24 km NNW of Karluk, Alaska (United States) on August 4, 2025 at 19:38 UTC. With a focal depth of about 46 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. 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 232 earthquakes, the strongest at M4.1.

Details

Magnitude
M1.1
Depth
46.1 km
UTC time
2025-08-04 19:38:59 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
57.77050, -154.61270
Temperature
15.9°C

Map

Depth profile

Depth profile Depth: 46.1 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 46.1 km
Shallow
46.1 km
46.1 km — deeper than 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

  • Alaska Peninsula Arc at 155.4°W
    Distance: 49 km ·Lava dome ·Elevation: 402 m ·United States
  • Trident
    Distance: 59 km ·Stratovolcano ·Elevation: 1'864 m ·Last eruption: 1974 ·United States
  • Katmai
    Distance: 60 km ·Stratovolcano ·Elevation: 2'047 m ·Last eruption: 1912 ·United States
  • Mageik
    Distance: 60 km ·Stratovolcano ·Elevation: 2'165 m ·Last eruption: -500 ·United States
  • Martin
    Distance: 63 km ·Stratovolcano ·Elevation: 1'863 m ·Last eruption: 1953 ·United States
  • Snowy Mountain
    Distance: 63 km ·Stratovolcano(es) ·Elevation: 2'162 m ·Last eruption: 1710 ·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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