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M3.1 Depth: 1.0 km

M3.1 Earthquake near 234 km ESE of Attu Station, Alaska

UTC time: 2026-08-20 01:31:15 UTC Local time: —

About this earthquake

A magnitude M3.1 earthquake was recorded near 234 km ESE of Attu Station, Alaska on August 20, 2026 at 01:31 UTC. The hypocenter lay relatively close to the surface at around 1 km, increasing how strongly it was felt. Shaking of this size is frequently noticed but usually harmless.

The event was recorded by USGS.

Details

Magnitude
M3.1
Depth
1.0 km
UTC time
2026-08-20 01:31:15 UTC
Local time
—
Country
—
Source
usgs
Coordinates
51.98000, 176.32200
Temperature
9.4°C

Map

Depth profile

Depth profile Depth: 1 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 1 km
Shallow
1 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

  • Buldir
    Distance: 50 km ·Stratovolcano ·Elevation: 656 m ·United States
  • Kiska
    Distance: 89 km ·Stratovolcano ·Elevation: 1'220 m ·Last eruption: 1990 ·United States
  • Segula
    Distance: 124 km ·Stratovolcano ·Elevation: 1'160 m ·United States
  • Davidof
    Distance: 138 km ·Stratovolcano ·Elevation: 328 m ·United States
  • Little Sitkin
    Distance: 152 km ·Stratovolcano ·Elevation: 1'174 m ·Last eruption: 1830 ·United States
  • Semisopochnoi
    Distance: 223 km ·Stratovolcano ·Elevation: 1'221 m ·Last eruption: 2023 ·United States

Stats (last 24h)

Global (24h)
636
Country (24h)
—
—
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