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M1.7 Depth: 8.0 km

M1.7 Earthquake near 88 km E of King Salmon, Alaska (United States)

UTC time: 2025-10-21 05:02:02 UTC Local time: —

About this earthquake

On October 21, 2025 at 05:02 UTC, a magnitude M1.7 earthquake occurred near 88 km E of King Salmon, Alaska (United States). The hypocenter lay relatively close to the surface at around 8 km, increasing how strongly it was felt. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by USGS. United States: 180 earthquakes were recorded in the past 24 hours, the strongest reaching M4.7.

Details

Magnitude
M1.7
Depth
8.0 km
UTC time
2025-10-21 05:02:02 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
58.61100, -155.14950
Temperature
-1.2°C

Map

Depth profile

Depth profile Depth: 8 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 8 km
Shallow
8 km
8 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

  • Griggs
    Distance: 29 km ·Stratovolcano ·Elevation: 2'317 m ·Last eruption: -1790 ·United States
  • Novarupta
    Distance: 38 km ·Caldera ·Elevation: 841 m ·Last eruption: 1912 ·United States
  • Katmai
    Distance: 39 km ·Stratovolcano ·Elevation: 2'047 m ·Last eruption: 1912 ·United States
  • Snowy Mountain
    Distance: 41 km ·Stratovolcano(es) ·Elevation: 2'162 m ·Last eruption: 1710 ·United States
  • Trident
    Distance: 42 km ·Stratovolcano ·Elevation: 1'864 m ·Last eruption: 1974 ·United States
  • Denison
    Distance: 46 km ·Stratovolcano ·Elevation: 2'287 m ·United States

Historic earthquake map · United States

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Country statistics · United States

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

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