Back to map

M5.6 Earthquake near 68 km SE of Adak, Alaska

UTC time: 2026-05-28 00:25:20 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
M5.6
Depth
22.7 km
Source
USGS

68 km SE of Adak, Alaska

Map

M5.6 Earthquake near 68 km SE of Adak, Alaska · 2026-05-28 — Map showing the location of the epicenter
M5.6 Earthquake near 68 km SE of Adak, Alaska · 2026-05-28 — Map showing the location of the epicenter

About this earthquake

On May 28, 2026 at 00:25 UTC, a magnitude M5.6 earthquake occurred near 68 km SE of Adak, Alaska. The hypocenter lay relatively close to the surface at around 23 km, increasing how strongly it was felt. Earthquakes of this magnitude can damage poorly built structures.

The event was recorded by USGS.

Details

ID
f64fe09cd164d56c6d222e3550ac17e10dcd88e0
Magnitude
M5.6
Depth
22.7 km
UTC time
2026-05-28 00:25:20 UTC
Local time
—
Country
—
Source
usgs
Coordinates
51.50100, -175.85200
Temperature
5.4°C

Depth profile

Depth profile Depth: 22.7 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 22.7 km
Shallow
22.7 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

  • Great Sitkin WATCH · ORANGE
    Distance: 67 km ·Stratovolcano ·Elevation: 1'740 m ·Last eruption: 2026 ·United States
  • Kasatochi
    Distance: 79 km ·Stratovolcano ·Elevation: 314 m ·Last eruption: 2008 ·United States
  • Moffett
    Distance: 79 km ·Stratovolcano ·Elevation: 1'196 m ·Last eruption: -1600 ·United States
  • Koniuji
    Distance: 94 km ·Stratovolcano ·Elevation: 273 m ·Last eruption: -1150 ·United States
  • Kanaga
    Distance: 102 km ·Stratovolcano ·Elevation: 1'307 m ·Last eruption: 2023 ·United States
  • Bobrof
    Distance: 118 km ·Stratovolcano ·Elevation: 738 m ·United States

Radius · 100 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

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

Source: OurAirports · Dataset date: 2026-09-08

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 hours2
First 24 hours2
First 72 hours4
Strongest subsequent eventM5.2
M5.22026-05-28 00:25:21 UTC32.1 kmANDREANOF ISLANDS, ALEUTIAN IS. M5.22026-05-28 00:25:22 UTC16.2 km52 km ESE of Adak, Alaska M4.32026-05-30 05:07:56 UTC139.2 kmANDREANOF ISLANDS, ALEUTIAN IS. M3.72026-05-30 05:07:57 UTC139.1 km103 km SW of Adak, Alaska M2.02026-06-01 21:22:45 UTC48.1 km78 km SSE of Adak, Alaska M2.02026-06-02 19:24:38 UTC83.3 km62 km SSW of Adak, Alaska M2.02026-06-02 22:20:00 UTC119.1 km84 km SW of Adak, Alaska M1.62026-06-03 18:23:25 UTC60.7 km7 km SE of Adak, Alaska M4.52026-06-04 17:50:48 UTC34.7 kmANDREANOF ISLANDS, ALEUTIAN IS. M2.52026-06-05 17:15:24 UTC63.2 km4 km SE of Adak, Alaska M1.92026-06-08 22:42:36 UTC60.5 km47 km S of Adak, Alaska M2.02026-06-09 04:49:58 UTC143.0 km101 km WSW of Adak, 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#5
Earlier events M≥493
Earlier events M≥535
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 UTC41.3 km88 km SSE of Adak, Alaska M6.22025-03-21 14:53:43 UTC29.8 kmAndreanof Islands, Aleutian Islands M5.82025-11-23 08:21:45 UTC82.4 km65 km SSW of Adak, Alaska M5.82025-11-23 08:21:44 UTC78.5 kmAndreanof Islands, Aleutian Islands, United States [Sea: United States] M5.62025-03-22 09:49:21 UTC42.1 km87 km SSE of Adak, Alaska

Stats (last 24h)

Global (24h)
513
Country (24h)
—
—
Current earthquakes in
Magnitude Place Local time
No recent events available.

Share