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M5.9 Earthquake near Rat Islands, Aleutian Islands, United States [Sea: United States]

UTC time: 2026-05-09 04:42:25 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
M5.9
Depth
17.2 km
Source
INGV

Rat Islands, Aleutian Islands, United States [Sea: United States]

Map

M5.9 Earthquake near Rat Islands, Aleutian Islands, United States [Sea: United States] · 2026-05-09 — Map showing the location of the epicenter
M5.9 Earthquake near Rat Islands, Aleutian Islands, United States [Sea: United States] · 2026-05-09 — Map showing the location of the epicenter

About this earthquake

On May 9, 2026 at 04:42 UTC, a magnitude M5.9 earthquake occurred near Rat Islands, Aleutian Islands, United States [Sea: United States]. With a focal depth of about 17 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 INGV and cross-checked across seismological networks.

Details

ID
540b7d2979a4c0e623389a3d9ac725e5c0d928e4
Magnitude
M5.9
Depth
17.2 km
UTC time
2026-05-09 04:42:25 UTC
Local time
—
Country
—
Source
ingv
Coordinates
51.39840, 179.53100
Temperature
4.3°C

Depth profile

Depth profile Depth: 17.2 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 17.2 km
Shallow
17.2 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

  • Semisopochnoi
    Distance: 59 km ·Stratovolcano ·Elevation: 1'221 m ·Last eruption: 2023 ·United States
  • Little Sitkin
    Distance: 92 km ·Stratovolcano ·Elevation: 1'174 m ·Last eruption: 1830 ·United States
  • Davidof
    Distance: 104 km ·Stratovolcano ·Elevation: 328 m ·United States
  • Segula
    Distance: 118 km ·Stratovolcano ·Elevation: 1'160 m ·United States
  • Kiska
    Distance: 154 km ·Stratovolcano ·Elevation: 1'220 m ·Last eruption: 1990 ·United States
  • Buldir
    Distance: 270 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 hours1
First 24 hours1
First 72 hours1
Strongest subsequent eventM5.8
M5.82026-05-09 04:42:26 UTC5.6 kmRAT ISLANDS, ALEUTIAN ISLANDS M3.92026-05-13 03:37:20 UTC47.0 km295 km WSW of Adak, Alaska M0.72026-05-22 18:34:33 UTC116.4 kmUnorganized Borough M4.02026-05-25 05:28:14 UTC47.7 kmRAT ISLANDS, ALEUTIAN ISLANDS M2.62026-05-26 21:56:37 UTC108.8 km161 km WSW of Adak, Alaska M4.62026-05-27 05:57:10 UTC79.7 kmRAT ISLANDS, ALEUTIAN ISLANDS M4.62026-05-27 05:57:11 UTC78.6 kmRat Islands, Aleutian Islands, Alaska M4.82026-05-27 05:57:12 UTC58.1 kmRat Islands, Aleutian Islands M3.12026-05-27 21:50:21 UTC119.0 kmRAT ISLANDS, ALEUTIAN ISLANDS M1.72026-05-27 23:50:27 UTC103.1 kmRat Islands, Aleutian Islands, Alaska M3.32026-05-28 05:03:42 UTC67.8 kmANDREANOF ISLANDS, ALEUTIAN IS. M4.22026-06-06 14:49:00 UTC38.5 kmANDREANOF ISLANDS, ALEUTIAN IS.

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#4
Earlier events M≥497
Earlier events M≥555
Compared since2025-01-30

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

Strongest earlier events

M6.12026-05-09 04:42:22 UTC51.4 kmRat Islands, Aleutian Islands, Alaska M6.12026-03-04 17:54:35 UTC97.4 km M6.12025-08-28 11:07:35 UTC90.2 kmRat Islands, Aleutian Islands M5.92026-05-09 04:42:22 UTC37.4 km292 km WSW of Adak, Alaska M5.92025-08-28 11:07:50 UTC81.2 kmRat Islands, Aleutian Islands, United States [Sea: United States]

Stats (last 24h)

Global (24h)
484
Country (24h)
—
—
Current earthquakes in
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No recent events available.

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