M1.2 Depth: 3.5 km

M1.2 Earthquake near 95 km N of Karluk, Alaska (United States)

UTC time: 2025-10-21 10:11:32 UTC Local time:

About this earthquake

A magnitude M1.2 earthquake was recorded near 95 km N of Karluk, Alaska (United States) on October 21, 2025 at 10:11 UTC. With a focal depth of about 4 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: 184 earthquakes were recorded in the past 24 hours, the strongest reaching M4.7.

Details

Magnitude
M1.2
Depth
3.5 km
UTC time
2025-10-21 10:11:32 UTC
Local time
Country
City
Source
usgs
Coordinates
58.41380, -154.71450
Temperature
-0.6°C

Map

Depth profile

Depth profile Depth: 3.5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 3.5 km
Shallow
3.5 km
3.5 km — shallower 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

  • Snowy Mountain
    Distance: 9 km ·Stratovolcano(es) ·Elevation: 2'162 m ·Last eruption: 1710 ·United States
  • Denison
    Distance: 15 km ·Stratovolcano ·Elevation: 2'287 m ·United States
  • Steller
    Distance: 19 km ·Stratovolcano ·Elevation: 2'279 m ·United States
  • Katmai
    Distance: 20 km ·Stratovolcano ·Elevation: 2'047 m ·Last eruption: 1912 ·United States
  • Kukak
    Distance: 21 km ·Stratovolcano ·Elevation: 2'043 m ·United States
  • Griggs
    Distance: 23 km ·Stratovolcano ·Elevation: 2'317 m ·Last eruption: -1790 ·United States

Historic earthquake map · United States

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

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

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