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M5.5 Earthquake near Rat Islands, Aleutian Islands

UTC time: 2026-05-09 04:42:22 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.

Magnitude
M5.5
Depth
10.0 km
Source
GFZ

Rat Islands, Aleutian Islands

Map

M5.5 Earthquake near Rat Islands, Aleutian Islands · 2026-05-09 — Map showing the location of the epicenter
M5.5 Earthquake near Rat Islands, Aleutian Islands · 2026-05-09 — Map showing the location of the epicenter

About this earthquake

A magnitude M5.5 earthquake was recorded near Rat Islands, Aleutian Islands on May 9, 2026 at 04:42 UTC. With a focal depth of about 10 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 data is provided by GFZ and cross-checked across seismological networks.

Details

ID
9be0d07f239b6c24d313491d0f922e125a75f55b
Magnitude
M5.5
Depth
10.0 km
UTC time
2026-05-09 04:42:22 UTC
Local time
—
Country
—
Source
gfz
Coordinates
51.35000, 179.37000
Temperature
4.3°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

  • Semisopochnoi
    Distance: 66 km ·Stratovolcano ·Elevation: 1'221 m ·Last eruption: 2023 ·United States
  • Little Sitkin
    Distance: 88 km ·Stratovolcano ·Elevation: 1'174 m ·Last eruption: 1830 ·United States
  • Davidof
    Distance: 99 km ·Stratovolcano ·Elevation: 328 m ·United States
  • Segula
    Distance: 113 km ·Stratovolcano ·Elevation: 1'160 m ·United States
  • Kiska
    Distance: 148 km ·Stratovolcano ·Elevation: 1'220 m ·Last eruption: 1990 ·United States
  • Buldir
    Distance: 262 km ·Stratovolcano ·Elevation: 656 m ·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 hours4
First 72 hours4
Strongest subsequent eventM5.9
M5.82026-05-09 04:42:23 UTC29.9 km###.# km ( ###.# mi) NW (az= 306.5) from Wendover, UT M5.32026-05-09 04:42:23 UTC44.8 kmRat Islands, Aleutian Islands, Alaska M5.92026-05-09 04:42:25 UTC12.4 kmRat Islands, Aleutian Islands, United States [Sea: United States] M5.82026-05-09 04:42:26 UTC7.9 kmRAT ISLANDS, ALEUTIAN ISLANDS M3.92026-05-13 03:37:20 UTC40.1 km295 km WSW of Adak, Alaska M0.72026-05-22 18:34:33 UTC128.7 kmUnorganized Borough M4.02026-05-25 05:28:14 UTC40.0 kmRAT ISLANDS, ALEUTIAN ISLANDS M2.62026-05-26 21:56:37 UTC120.8 km161 km WSW of Adak, Alaska M4.62026-05-27 05:57:10 UTC68.3 kmRAT ISLANDS, ALEUTIAN ISLANDS M4.62026-05-27 05:57:11 UTC67.1 kmRat Islands, Aleutian Islands, Alaska M4.82026-05-27 05:57:12 UTC46.0 kmRat Islands, Aleutian Islands M3.12026-05-27 21:50:21 UTC110.8 kmRAT ISLANDS, ALEUTIAN ISLANDS

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#16
Earlier events M≥489
Earlier events M≥548
Compared since2025-01-30

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

Strongest earlier events

M6.12026-03-04 17:54:35 UTC88.4 km M6.12025-08-28 11:07:35 UTC98.4 kmRat Islands, Aleutian Islands M5.92025-08-28 11:07:50 UTC90.8 kmRat Islands, Aleutian Islands, United States [Sea: United States] M5.92025-08-28 11:07:48 UTC79.8 km241 km W of Adak, Alaska M5.92025-08-28 11:07:48 UTC103.4 kmRAT ISLANDS, ALEUTIAN ISLANDS

Stats (last 24h)

Global (24h)
579
Country (24h)
—
—
Current earthquakes in
Magnitude Place Local time
No recent events available.

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