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M5.1 Earthquake near Unimak Island Region, Alaska

UTC time: 2025-05-23 02:30:42 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
M5.1
Depth
10.0 km
Source
GFZ

Unimak Island Region, Alaska

Map

M5.1 Earthquake near Unimak Island Region, Alaska · 2025-05-23 — Map showing the location of the epicenter
M5.1 Earthquake near Unimak Island Region, Alaska · 2025-05-23 — Map showing the location of the epicenter

About this earthquake

A magnitude M5.1 earthquake was recorded near Unimak Island Region, Alaska on May 23, 2025 at 02:30 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
85397e8ccac533689fe8735dbe89ebdade9b9c96
Magnitude
M5.1
Depth
10.0 km
UTC time
2025-05-23 02:30:42 UTC
Local time
—
Country
—
Source
gfz
Coordinates
53.62000, -164.58000
Temperature
5.3°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

  • Westdahl
    Distance: 100 km ·Stratovolcano? ·Elevation: 1'563 m ·Last eruption: 1992 ·United States
  • Akutan
    Distance: 108 km ·Stratovolcano ·Elevation: 1'303 m ·Last eruption: 1992 ·United States
  • Fisher
    Distance: 115 km ·Stratovolcano ·Elevation: 1'112 m ·Last eruption: 1830 ·United States
  • Shishaldin ADVISORY · YELLOW
    Distance: 132 km ·Stratovolcano ·Elevation: 2'857 m ·Last eruption: 2023 ·United States
  • Roundtop
    Distance: 146 km ·Stratovolcano ·Elevation: 1'871 m ·Last eruption: -7600 ·United States
  • Makushin
    Distance: 157 km ·Stratovolcano ·Elevation: 1'800 m ·Last eruption: 1995 ·United States

Radius · 100 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Akutan AirportUnited States · KQA · PAUT
    88.9 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-10-01

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

Subsequent earthquakes nearby

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

First 6 hours0
First 24 hours2
First 72 hours2
Strongest subsequent eventM5.1
M4.92025-05-23 11:54:35 UTC11.6 kmUnimak Island Region, Alaska M4.62025-05-23 11:54:38 UTC19.1 kmUNIMAK ISLAND REGION, ALASKA M4.22025-05-30 13:51:21 UTC120.3 kmUNIMAK ISLAND REGION, ALASKA M1.62025-05-30 19:23:08 UTC128.9 km37 km S of False Pass, Alaska M5.12025-05-31 22:41:03 UTC93.4 kmUNIMAK ISLAND REGION, ALASKA M3.62025-06-10 09:29:36 UTC101.7 kmUNIMAK ISLAND REGION, ALASKA M4.12025-06-18 20:50:17 UTC50.7 kmFOX ISLANDS, ALEUTIAN ISLANDS M3.02025-06-18 22:59:50 UTC148.5 kmFOX 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#3
Earlier events M≥49
Earlier events M≥53
Compared since2025-01-02

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

Strongest earlier events

M5.32025-05-23 02:30:40 UTC30.9 km M5.22025-05-23 02:30:40 UTC30.9 kmUNIMAK ISLAND REGION, ALASKA M5.02025-02-04 19:27:46 UTC54.3 km151 km SE of Akutan, Alaska M4.62025-02-04 19:32:26 UTC54.3 km151 km SE of Akutan, Alaska M4.42025-02-04 16:31:24 UTC48.7 km145 km SE of Akutan, Alaska

Stats (last 24h)

Global (24h)
560
Country (24h)
—
—
Current earthquakes in
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No recent events available.

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