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M5.2 Depth: 20.0 km

M5.2 Earthquake near 87 km SSE of Adak, Alaska

UTC time: 2025-03-20 06:07:08 UTC Local time: —

About this earthquake

A magnitude M5.2 earthquake was recorded near 87 km SSE of Adak, Alaska on March 20, 2025 at 06:07 UTC. The hypocenter lay relatively close to the surface at around 20 km, increasing how strongly it was felt. Earthquakes of this magnitude can damage poorly built structures.

The event was recorded by USGS.

Details

Magnitude
M5.2
Depth
20.0 km
UTC time
2025-03-20 06:07:08 UTC
Local time
—
Country
—
Source
usgs
Coordinates
51.15290, -176.12110

Map

Depth profile

Depth profile Depth: 20 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 20 km
Shallow
20 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: 103 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: 137 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 hours26
First 24 hours77
First 72 hours202
Strongest subsequent eventM6.2
M2.62025-03-20 06:25:50 UTC5.7 km93 km SSE of Adak, Alaska M3.02025-03-20 06:35:06 UTC5.3 km83 km SSE of Adak, Alaska M4.02025-03-20 06:50:29 UTC0.8 km87 km SSE of Adak, Alaska M2.62025-03-20 07:09:19 UTC21.3 km109 km SSE of Adak, Alaska M2.72025-03-20 07:35:22 UTC3.4 km90 km SSE of Adak, Alaska M3.92025-03-20 07:58:00 UTC7.1 km81 km SSE of Adak, Alaska M3.82025-03-20 08:11:33 UTC4.4 km83 km SSE of Adak, Alaska M2.62025-03-20 08:26:05 UTC25.3 km112 km SSE of Adak, Alaska M3.52025-03-20 08:33:21 UTC9.4 km80 km SSE of Adak, Alaska M3.72025-03-20 08:34:33 UTC13.1 km98 km SSE of Adak, Alaska M2.92025-03-20 08:35:39 UTC6.9 km94 km SSE of Adak, Alaska M3.02025-03-20 08:42:32 UTC12.7 km99 km SSE of Adak, Alaska

Comparison of seismic sources

2 sources currently report magnitudes from M5.1 to M5.2.

Measurements can differ because agencies use different networks and calculation methods. Values may be revised.

SourceMagnitudeDepthPosition difference
USPM5.110.0 km2.0 km
USGSM5.220.0 km0.0 km

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#3
Earlier events M≥412
Earlier events M≥55
Compared since2025-01-02

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

Strongest earlier events

M5.62025-03-20 04:28:52 UTC1.3 km87 km SSE of Adak, Alaska M5.42025-03-20 05:13:06 UTC6.7 km94 km SSE of Adak, Alaska M5.12025-03-20 05:13:06 UTC65.4 kmAndreanof Islands, Aleutian Islands M5.02025-03-19 08:13:08 UTC12.3 km98 km SSE of Adak, Alaska M5.02025-02-27 21:48:30 UTC123.8 km53 km NE of Adak, Alaska

Stats (last 24h)

Global (24h)
659
Country (24h)
—
—
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