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M5.0 Earthquake near 264 km ESE of Attu Station, Alaska

UTC time: 2026-09-04 02:28:46 UTC Local time: —
Earthquake newsQuakeMap24
Archive record · original publication time was not recorded Content updated:

Automatically generated from measurement data by QuakeMap24. Values may change after further analysis. How our reports are produced ↗

Magnitude
M5.0
Depth
52.0 km
Source
USGS

264 km ESE of Attu Station, Alaska

Map

M5.0 Earthquake near 264 km ESE of Attu Station, Alaska · 2026-09-04 — Map showing the location of the epicenter
M5.0 Earthquake near 264 km ESE of Attu Station, Alaska · 2026-09-04 — Map showing the location of the epicenter

About this earthquake

A magnitude M5.0 earthquake was recorded near 264 km ESE of Attu Station, Alaska on September 4, 2026 at 02:28 UTC. With a focal depth of about 52 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this magnitude can damage poorly built structures.

The event was recorded by USGS.

Details

ID
469fbc7a35678c24ad7718772450ac467ad0347b
Magnitude
M5.0
Depth
52.0 km
UTC time
2026-09-04 02:28:46 UTC
Local time
—
Country
—
Source
usgs
Coordinates
52.12800, 176.90500
Temperature
9.9°C

Depth profile

Depth profile Depth: 52 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 52 km
Shallow
52 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

Ground shaking

III
Weak · Intensity (MMI) III
Felt by a few, no damage.

Tectonic context

Located on the North America Plate.
Near the boundary North America ↔ Pacific · about 135 km away

Volcanoes nearby

  • Kiska
    Distance: 48 km ·Stratovolcano ·Elevation: 1'220 m ·Last eruption: 1990 ·United States
  • Buldir
    Distance: 72 km ·Stratovolcano ·Elevation: 656 m ·United States
  • Segula
    Distance: 85 km ·Stratovolcano ·Elevation: 1'160 m ·United States
  • Davidof
    Distance: 99 km ·Stratovolcano ·Elevation: 328 m ·United States
  • Little Sitkin
    Distance: 114 km ·Stratovolcano ·Elevation: 1'174 m ·Last eruption: 1830 ·United States
  • Semisopochnoi
    Distance: 184 km ·Stratovolcano ·Elevation: 1'221 m ·Last eruption: 2023 ·United States

Comparison of seismic sources

3 sources currently report magnitudes from M4.8 to M5.0.

Measurements can differ because agencies use different networks and calculation methods. Values may be revised.

SourceMagnitudeDepthPosition difference
EMSCM5.010.0 km42.6 km
USGSM5.010.0 km42.6 km
GFZM4.810.0 km25.9 km

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

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#63
Earlier events M≥4165
Earlier events M≥568
Compared since2025-01-30

The QuakeMap24 comparison dataset begins on 2024-03-23. Earlier earthquakes may not be included.

Strongest earlier events

M6.52026-03-04 17:54:38 UTC40.0 km224 km ESE of Attu Station, Alaska M6.42026-03-04 17:54:36 UTC40.0 km###.# km ( ###.# mi) NW (az= 308.7) from Wendover, UT M6.12026-03-04 17:54:37 UTC126.2 kmRat Islands, Aleutian Islands M6.12026-03-04 17:54:35 UTC103.6 km M6.12026-01-15 08:52:45 UTC68.5 kmRat Islands, Aleutian Islands, United States [Sea: United States]

Stats (last 24h)

Global (24h)
511
Country (24h)
—
—
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