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M5.0 Earthquake near Andreanof Islands, Aleutian Islands (United States)

UTC time: 2025-10-20 18:45:29 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.

Map

M5.0 Earthquake near Andreanof Islands, Aleutian Islands (United States) · 2025-10-20 — Map showing the location of the epicenter
M5.0 Earthquake near Andreanof Islands, Aleutian Islands (United States) · 2025-10-20 — Map showing the location of the epicenter

About this earthquake

On October 20, 2025 at 18:45 UTC, a magnitude M5.0 earthquake occurred near Andreanof Islands, Aleutian Islands (United States). The hypocenter lay relatively close to the surface at around 53 km, increasing how strongly it was felt. Events of this size can cause damage near the epicenter.

The data is provided by GFZ and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 156 earthquakes, the strongest at M3.6.

Details

ID
3d41479a6090ae9f16b1642b7d9ae32cdc93302e
Magnitude
M5.0
Depth
53.0 km
UTC time
2025-10-20 18:45:29 UTC
Local time
—
Country
United States
City
Alaska
Source
gfz
Coordinates
51.47000, -177.14000
Temperature
6.9°C

Depth profile

Depth profile Depth: 53 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 53 km
Shallow
53 km
53 km — deeper than the regional average (15.2 km)
Regional average: 15.2 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

  • Kanaga
    Distance: 50 km ·Stratovolcano ·Elevation: 1'307 m ·Last eruption: 2023 ·United States
  • Bobrof
    Distance: 53 km ·Stratovolcano ·Elevation: 738 m ·United States
  • Moffett
    Distance: 59 km ·Stratovolcano ·Elevation: 1'196 m ·Last eruption: -1600 ·United States
  • Takawangha
    Distance: 75 km ·Stratovolcano ·Elevation: 1'449 m ·Last eruption: 1550 ·United States
  • Tanaga
    Distance: 83 km ·Stratovolcano(es) ·Elevation: 1'806 m ·Last eruption: 1914 ·United States
  • Great Sitkin WATCH · ORANGE
    Distance: 97 km ·Stratovolcano ·Elevation: 1'740 m ·Last eruption: 2026 ·United States

Radius · 100 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Adak AirportUnited States · ADK · PADK
    57.4 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-10-04

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 hours0
First 72 hours0
Strongest subsequent eventM5.1
M0.82025-10-24 17:47:02 UTC119.6 km149 km W of Adak, Alaska M5.02025-10-25 10:13:06 UTC70.6 kmANDREANOF ISLANDS, ALEUTIAN IS. M5.12025-10-25 10:13:10 UTC66.2 kmAndreanof Islands, Aleutian Islands M3.52025-10-26 06:36:45 UTC64.1 kmANDREANOF ISLANDS, ALEUTIAN IS. M3.82025-10-26 06:36:46 UTC63.9 km116 km SW of Adak, Alaska

Alaska

Context for this earthquake

04 Oct 2025 – 04 Oct 2026 · M ≥ 3.0 · 653 Catalogue entries

Of 652 other entries for this area and period, 48 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

Open seismic profile

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#21
Earlier events M≥461
Earlier events M≥528
Compared since2025-01-02

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

Strongest earlier events

M6.22025-03-21 14:53:41 UTC82.1 km88 km SSE of Adak, Alaska M6.22025-03-21 14:53:43 UTC67.0 kmAndreanof Islands, Aleutian Islands M5.72025-09-21 09:30:33 UTC62.7 kmAndreanof Islands, Aleutian Islands, United States [Sea: United States] M5.62025-09-21 09:30:27 UTC68.7 km123 km SW of Adak, Alaska M5.62025-03-22 09:49:21 UTC79.2 km87 km SSE of Adak, Alaska

Historic earthquake map · United States

Open history map
Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · United States

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

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