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M5.2 Earthquake near 173 km E of Atka, Alaska

UTC time: 2026-05-18 21:37:22 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
M5.2
Depth
20.0 km
Source
USGS

173 km E of Atka, Alaska

Map

M5.2 Earthquake near 173 km E of Atka, Alaska · 2026-05-18 — Map showing the location of the epicenter
M5.2 Earthquake near 173 km E of Atka, Alaska · 2026-05-18 — Map showing the location of the epicenter

About this earthquake

On May 18, 2026 at 21:37 UTC, a magnitude M5.2 earthquake occurred near 173 km E of Atka, Alaska. 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 data is provided by USGS and cross-checked across seismological networks.

Details

ID
b8f8bd19c270ca3ed81dadb85881ebf2629e89a2
Magnitude
M5.2
Depth
20.0 km
UTC time
2026-05-18 21:37:22 UTC
Local time
—
Country
—
Source
usgs
Coordinates
52.30900, -171.66800
Temperature
4.1°C

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

  • Amukta
    Distance: 35 km ·Stratovolcano ·Elevation: 1'066 m ·Last eruption: 1996 ·United States
  • Chagulak
    Distance: 46 km ·Stratovolcano ·Elevation: 1'028 m ·United States
  • Seguam
    Distance: 57 km ·Stratovolcano(es) ·Elevation: 1'054 m ·Last eruption: 1993 ·United States
  • Yunaska
    Distance: 79 km ·Shield ·Elevation: 550 m ·Last eruption: 1937 ·United States
  • Herbert
    Distance: 116 km ·Stratovolcano ·Elevation: 1'280 m ·United States
  • Carlisle
    Distance: 127 km ·Stratovolcano ·Elevation: 1'620 m ·Last eruption: 1828 ·United States

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 hours2
Strongest subsequent eventM5.6
M3.42026-05-18 23:27:41 UTC8.2 kmFOX ISLANDS, ALEUTIAN ISLANDS M3.22026-05-18 23:27:42 UTC26.9 km174 km ENE of Atka, Alaska M5.62026-05-22 12:16:13 UTC33.7 kmFox Islands, Aleutian Islands M5.62026-05-22 12:16:13 UTC30.1 kmFOX ISLANDS, ALEUTIAN ISLANDS M5.62026-05-22 12:16:14 UTC22.2 km###.# km ( ###.# mi) NW (az= 304.0) from Port Orford, OR M5.22026-05-22 12:16:16 UTC52.2 kmEvent of magnitude 5.2, near Anchorage (Monde) M5.22026-05-22 12:16:17 UTC13.3 km162 km E of Atka, Alaska M4.52026-05-22 12:46:12 UTC14.2 kmFOX ISLANDS, ALEUTIAN ISLANDS M4.22026-05-22 20:10:52 UTC9.7 km170 km E of Atka, Alaska M4.32026-05-22 20:10:52 UTC11.4 kmFOX ISLANDS, ALEUTIAN ISLANDS M4.02026-05-22 20:15:14 UTC7.5 kmFOX ISLANDS, ALEUTIAN ISLANDS M4.92026-05-23 09:03:09 UTC149.2 kmFOX ISLANDS, ALEUTIAN ISLANDS

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#25
Earlier events M≥485
Earlier events M≥544
Compared since2025-01-13

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

Strongest earlier events

M6.32026-02-23 05:11:49 UTC123.2 kmAlaska M6.22025-09-03 20:57:41 UTC123.2 km87 km SW of Nikolski, Alaska M6.12026-02-23 05:11:48 UTC123.1 km###.# km ( ###.# mi) WNW (az= 303.7) from Port Orford, OR M6.12026-02-23 05:11:48 UTC109.5 kmAlaska M6.02025-09-03 20:57:47 UTC135.4 km87 km SW of Nikolski, Alaska

Stats (last 24h)

Global (24h)
583
Country (24h)
—
—
Current earthquakes in
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No recent events available.

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