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M4.0 Earthquake near 232 km ESE of Attu Station, Alaska

UTC time: 2026-04-03 04:28:00 UTC Local time: —
Magnitude
M4.0
Depth
40.2 km
Source
USGS

232 km ESE of Attu Station, Alaska

Map

About this earthquake

A magnitude M4.0 earthquake was recorded near 232 km ESE of Attu Station, Alaska on April 3, 2026 at 04:28 UTC. With a focal depth of about 40 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Tremors of this size are distinctly felt and can occasionally cause light damage.

The event was recorded by USGS.

Details

ID
583232d8637c0bae8503379d2faad5172be592af
Magnitude
M4.0
Depth
40.2 km
UTC time
2026-04-03 04:28:00 UTC
Local time
—
Country
—
Source
usgs
Coordinates
51.97670, 176.29780
Temperature
3.0°C

Depth profile

Depth profile Depth: 40.2 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 40.2 km
Shallow
40.2 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: 49 km ·Stratovolcano ·Elevation: 656 m ·United States
  • Kiska
    Distance: 90 km ·Stratovolcano ·Elevation: 1'220 m ·Last eruption: 1990 ·United States
  • Segula
    Distance: 126 km ·Stratovolcano ·Elevation: 1'160 m ·United States
  • Davidof
    Distance: 139 km ·Stratovolcano ·Elevation: 328 m ·United States
  • Little Sitkin
    Distance: 154 km ·Stratovolcano ·Elevation: 1'174 m ·Last eruption: 1830 ·United States
  • Semisopochnoi
    Distance: 225 km ·Stratovolcano ·Elevation: 1'221 m ·Last eruption: 2023 ·United States

No unambiguous area assignment

Context for this earthquake

This event has no unambiguous country assignment in the analysed catalogue. It is therefore not assigned to a regional profile.

Earthquake overview

Stats (last 24h)

Global (24h)
636
Country (24h)
—
—
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