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M5.4 Earthquake near 94 km SSE of Adak, Alaska

UTC time: 2025-03-20 05:13:06 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
M5.4
Depth
35.0 km
Source
USGS

94 km SSE of Adak, Alaska

Map

M5.4 Earthquake near 94 km SSE of Adak, Alaska · 2025-03-20 — Map showing the location of the epicenter
M5.4 Earthquake near 94 km SSE of Adak, Alaska · 2025-03-20 — Map showing the location of the epicenter

About this earthquake

On March 20, 2025 at 05:13 UTC, a magnitude M5.4 earthquake occurred near 94 km SSE of Adak, Alaska. The hypocenter lay relatively close to the surface at around 35 km, increasing how strongly it was felt. Events of this size can cause damage near the epicenter.

The data is provided by USGS and cross-checked across seismological networks.

Details

ID
f76275389d05559a755ab706b4700d3e55d462d9
Magnitude
M5.4
Depth
35.0 km
UTC time
2025-03-20 05:13:06 UTC
Local time
—
Country
—
Source
usgs
Coordinates
51.09450, -176.09680

Depth profile

Depth profile Depth: 35 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 35 km
Shallow
35 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: 105 km ·Stratovolcano ·Elevation: 1'196 m ·Last eruption: -1600 ·United States
  • Great Sitkin WATCH · ORANGE
    Distance: 109 km ·Stratovolcano ·Elevation: 1'740 m ·Last eruption: 2026 ·United States
  • Kanaga
    Distance: 118 km ·Stratovolcano ·Elevation: 1'307 m ·Last eruption: 2023 ·United States
  • Kasatochi
    Distance: 127 km ·Stratovolcano ·Elevation: 314 m ·Last eruption: 2008 ·United States
  • Bobrof
    Distance: 130 km ·Stratovolcano ·Elevation: 738 m ·United States
  • Koniuji
    Distance: 142 km ·Stratovolcano ·Elevation: 273 m ·Last eruption: -1150 ·United States

Radius · 100 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

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

Source: OurAirports · Dataset date: 2026-09-21

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 hours30
First 24 hours82
First 72 hours210
Strongest subsequent eventM6.2
M3.42025-03-20 05:18:43 UTC2.5 km92 km SSE of Adak, Alaska M2.72025-03-20 05:22:21 UTC3.3 km97 km SSE of Adak, Alaska M3.42025-03-20 05:26:17 UTC4.6 km98 km SSE of Adak, Alaska M3.22025-03-20 05:35:45 UTC5.7 km89 km SSE of Adak, Alaska M3.52025-03-20 05:46:50 UTC13.7 km80 km SSE of Adak, Alaska M2.22025-03-20 05:58:57 UTC3.0 km91 km SSE of Adak, Alaska M5.12025-03-20 06:07:06 UTC8.5 kmAndreanof Islands, Aleutian Islands M2.62025-03-20 06:25:50 UTC1.1 km93 km SSE of Adak, Alaska M3.02025-03-20 06:35:06 UTC11.6 km83 km SSE of Adak, Alaska M4.02025-03-20 06:50:29 UTC7.3 km87 km SSE of Adak, Alaska M2.62025-03-20 07:09:19 UTC14.9 km109 km SSE of Adak, Alaska M2.72025-03-20 07:35:22 UTC4.5 km90 km SSE of Adak, Alaska

Comparison of seismic sources

3 sources currently report magnitudes from M5.2 to M5.6.

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

SourceMagnitudeDepthPosition difference
USPM5.210.0 km42.7 km
NNSNM5.635.0 km5.4 km
USGSM5.435.0 km0.0 km

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#2
Earlier events M≥410
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

M5.62025-03-20 04:28:52 UTC7.7 km87 km SSE of Adak, Alaska M5.02025-03-19 08:13:08 UTC6.5 km98 km SSE of Adak, Alaska M5.02025-02-27 21:48:30 UTC130.3 km53 km NE of Adak, Alaska M4.92025-01-22 13:26:06 UTC49.1 km51 km S of Adak, Alaska M4.82025-03-19 09:20:12 UTC20.4 km76 km SSE of Adak, Alaska

Stats (last 24h)

Global (24h)
650
Country (24h)
—
—
Current earthquakes in
Magnitude Place Local time
No recent events available.

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