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M5.3 Earthquake near 237 km ESE of Attu Station, Alaska

UTC time: 2026-03-17 16:21:38 UTC Local time: —
Earthquake newsQuakeMap24
Archive record · original publication time was not recorded

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

Magnitude
M5.3
Depth
10.0 km
Source
USGS

237 km ESE of Attu Station, Alaska

Map

M5.3 Earthquake near 237 km ESE of Attu Station, Alaska · 2026-03-17 — Map showing the location of the epicenter
M5.3 Earthquake near 237 km ESE of Attu Station, Alaska · 2026-03-17 — Map showing the location of the epicenter

About this earthquake

A magnitude M5.3 earthquake was recorded near 237 km ESE of Attu Station, Alaska on March 17, 2026 at 16:21 UTC. The hypocenter lay relatively close to the surface at around 10 km, increasing how strongly it was felt. Events of this size can cause damage near the epicenter.

The event was recorded by USGS.

Details

ID
2fafa4cc8635edf1a10cbdd51fd076c21a4f5c13
Magnitude
M5.3
Depth
10.0 km
UTC time
2026-03-17 16:21:38 UTC
Local time
—
Country
—
Source
usgs
Coordinates
52.21950, 176.53060
Temperature
2.9°C

Depth profile

Depth profile Depth: 10 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 10 km
Shallow
10 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: 45 km ·Stratovolcano ·Elevation: 656 m ·United States
  • Kiska
    Distance: 74 km ·Stratovolcano ·Elevation: 1'220 m ·Last eruption: 1990 ·United States
  • Segula
    Distance: 112 km ·Stratovolcano ·Elevation: 1'160 m ·United States
  • Davidof
    Distance: 126 km ·Stratovolcano ·Elevation: 328 m ·United States
  • Little Sitkin
    Distance: 141 km ·Stratovolcano ·Elevation: 1'174 m ·Last eruption: 1830 ·United States
  • Semisopochnoi
    Distance: 211 km ·Stratovolcano ·Elevation: 1'221 m ·Last eruption: 2023 ·United States

Subsequent earthquakes nearby

Events recorded after this earthquake within 150 km. They are not automatically classified as aftershocks.

First 6 hours4
First 24 hours7
First 72 hours9
Strongest subsequent eventM5.6
M5.32026-03-17 16:21:39 UTC1.4 kmRAT ISLANDS, ALEUTIAN ISLANDS M5.42026-03-17 16:21:41 UTC13.6 kmRat Islands, Aleutian Islands M5.62026-03-17 16:21:43 UTC110.5 km M3.32026-03-17 20:21:00 UTC27.7 kmRAT ISLANDS, ALEUTIAN ISLANDS M3.02026-03-17 23:08:41 UTC19.8 kmRAT ISLANDS, ALEUTIAN ISLANDS M4.92026-03-18 04:36:32 UTC11.1 km234 km ESE of Attu Station, Alaska M5.02026-03-18 04:36:34 UTC4.8 kmRat Islands, Aleutian Islands M3.22026-03-19 17:53:26 UTC50.8 kmRAT ISLANDS, ALEUTIAN ISLANDS M1.92026-03-20 01:24:44 UTC135.3 kmRat Islands, Aleutian Islands, Alaska M4.02026-03-22 07:31:24 UTC30.0 kmRAT ISLANDS, ALEUTIAN ISLANDS M4.22026-03-22 16:46:20 UTC91.4 km229 km SE of Attu Station, Alaska M4.52026-03-22 22:11:50 UTC127.7 km237 km SE of Attu Station, Alaska

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#27
Earlier events M≥488
Earlier events M≥544
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 UTC12.5 km224 km ESE of Attu Station, Alaska M6.42026-03-04 17:54:36 UTC12.5 km###.# km ( ###.# mi) NW (az= 308.7) from Wendover, UT M6.12026-03-04 17:54:37 UTC100.8 kmRat Islands, Aleutian Islands M6.12026-03-04 17:54:35 UTC130.7 km M6.12026-01-15 08:52:45 UTC79.7 kmRat Islands, Aleutian Islands, United States [Sea: United States]

Stats (last 24h)

Global (24h)
641
Country (24h)
—
—
Current earthquakes in
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No recent events available.

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