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M3.8 Depth: 20.5 km

M3.8 Earthquake near 56 km SE of Atka, Alaska (United States)

UTC time: 2025-08-24 08:16:01 UTC Local time: —

About this earthquake

On August 24, 2025 at 08:16 UTC, a magnitude M3.8 earthquake occurred near 56 km SE of Atka, Alaska (United States). The hypocenter lay relatively close to the surface at around 20 km, increasing how strongly it was felt. Earthquakes of this magnitude are often felt but rarely cause damage.

The event was recorded by USGS. United States: 195 earthquakes were recorded in the past 24 hours, the strongest reaching M3.7.

Details

Magnitude
M3.8
Depth
20.5 km
UTC time
2025-08-24 08:16:01 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
51.87960, -173.55970
Temperature
11.4°C

Map

Depth profile

Depth profile Depth: 20.5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 20.5 km
Shallow
20.5 km
20.5 km — deeper 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

  • Atka Volcanic Complex
    Distance: 64 km ·Stratovolcano(es) ·Elevation: 1'518 m ·Last eruption: 2025 ·United States
  • Seguam
    Distance: 87 km ·Stratovolcano(es) ·Elevation: 1'054 m ·Last eruption: 1993 ·United States
  • Koniuji
    Distance: 114 km ·Stratovolcano ·Elevation: 273 m ·Last eruption: -1150 ·United States
  • Kasatochi
    Distance: 137 km ·Stratovolcano ·Elevation: 314 m ·Last eruption: 2008 ·United States
  • Amukta
    Distance: 172 km ·Stratovolcano ·Elevation: 1'066 m ·Last eruption: 1996 ·United States
  • Great Sitkin WATCH · ORANGE
    Distance: 177 km ·Stratovolcano ·Elevation: 1'740 m ·Last eruption: 2026 ·United States

Historic earthquake map · United States

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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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