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M5.6 Depth: 20.5 km

M5.6 Earthquake near 87 km SSE of Adak, Alaska

UTC time: 2025-03-22 09:49:21 UTC Local time: —

About this earthquake

A magnitude M5.6 earthquake was recorded near 87 km SSE of Adak, Alaska on March 22, 2025 at 09:49 UTC. The hypocenter lay relatively close to the surface at around 20 km, increasing how strongly it was felt. Events of this size can cause damage near the epicenter.

The event was recorded by USGS.

Details

Magnitude
M5.6
Depth
20.5 km
UTC time
2025-03-22 09:49:21 UTC
Local time
—
Country
—
Source
usgs
Coordinates
51.15990, -176.11390

Map

Depth profile

Depth profile Depth: 20.5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 20.5 km
Shallow
20.5 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

  • Moffett
    Distance: 98 km ·Stratovolcano ·Elevation: 1'196 m ·Last eruption: -1600 ·United States
  • Great Sitkin WATCH · ORANGE
    Distance: 102 km ·Stratovolcano ·Elevation: 1'740 m ·Last eruption: 2026 ·United States
  • Kanaga
    Distance: 112 km ·Stratovolcano ·Elevation: 1'307 m ·Last eruption: 2023 ·United States
  • Kasatochi
    Distance: 121 km ·Stratovolcano ·Elevation: 314 m ·Last eruption: 2008 ·United States
  • Bobrof
    Distance: 124 km ·Stratovolcano ·Elevation: 738 m ·United States
  • Koniuji
    Distance: 136 km ·Stratovolcano ·Elevation: 273 m ·Last eruption: -1150 ·United States

Subsequent earthquakes nearby

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

First 6 hours19
First 24 hours59
First 72 hours89
Strongest subsequent eventM5.3
M5.32025-03-22 09:49:22 UTC26.1 kmAndreanof Islands, Aleutian Islands M2.62025-03-22 10:03:01 UTC23.7 km63 km SSE of Adak, Alaska M2.02025-03-22 10:27:52 UTC23.3 km68 km SE of Adak, Alaska M2.12025-03-22 10:51:07 UTC8.8 km79 km SSE of Adak, Alaska M2.22025-03-22 10:57:41 UTC14.1 km78 km SSE of Adak, Alaska M2.22025-03-22 11:27:44 UTC9.0 km93 km SSE of Adak, Alaska M2.02025-03-22 11:32:46 UTC13.5 km73 km SSE of Adak, Alaska M2.12025-03-22 11:39:37 UTC11.8 km76 km SSE of Adak, Alaska M3.42025-03-22 12:24:43 UTC21.7 km107 km SSE of Adak, Alaska M4.92025-03-22 12:59:19 UTC6.4 km86 km SSE of Adak, Alaska M2.72025-03-22 13:10:03 UTC18.3 km104 km SSE of Adak, Alaska M2.72025-03-22 13:12:38 UTC25.3 km110 km SSE of Adak, Alaska

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#3
Earlier events M≥428
Earlier events M≥59
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 UTC3.1 km88 km SSE of Adak, Alaska M6.22025-03-21 14:53:43 UTC20.9 kmAndreanof Islands, Aleutian Islands M5.62025-03-20 04:28:52 UTC0.4 km87 km SSE of Adak, Alaska M5.42025-03-20 05:13:06 UTC7.4 km94 km SSE of Adak, Alaska M5.22025-03-20 06:07:08 UTC0.9 km87 km SSE of Adak, Alaska

Stats (last 24h)

Global (24h)
644
Country (24h)
—
—
Current earthquakes in
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No recent events available.

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