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M5.2 Earthquake near 162 km E of Atka, Alaska

UTC time: 2026-05-22 12:16:17 UTC Local time: —
Earthquake newsQuakeMap24
Archive record · original publication time was not recorded Content updated:

Automatically generated from measurement data by QuakeMap24. Values may change after further analysis.

Magnitude
M5.2
Depth
40.0 km
Source
USGS

162 km E of Atka, Alaska

Map

M5.2 Earthquake near 162 km E of Atka, Alaska · 2026-05-22 — Map showing the location of the epicenter
M5.2 Earthquake near 162 km E of Atka, Alaska · 2026-05-22 — Map showing the location of the epicenter

About this earthquake

A magnitude M5.2 earthquake was recorded near 162 km E of Atka, Alaska on May 22, 2026 at 12:16 UTC. With a focal depth of about 40 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size can cause damage near the epicenter.

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

Details

ID
022056ccfa33dfebc1706b0e11b32b36598c426a
Magnitude
M5.2
Depth
40.0 km
UTC time
2026-05-22 12:16:17 UTC
Local time
—
Country
—
Source
usgs
Coordinates
52.37400, -171.83200
Temperature
4.2°C

Depth profile

Depth profile Depth: 40 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 40 km
Shallow
40 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

Official USGS aftershock forecast

Probability of at least one aftershock at or above the specified magnitude during the entire stated time window. This does not predict an individual earthquake.

Issued: Sep 11, 2026, 12:16 PM UTC · Last checked: Sep 14, 2026, 11:07 AM UTC

Sep 11, 2026, 1:00 PM UTC – Sep 12, 2026, 1:00 PM UTC · Expired
MagnitudeProbability ≥ 1Count (95% interval)
M ≥ 3.01.61 %0–0
M ≥ 4.00.16 %0–0
M ≥ 5.00.02 %0–0
M ≥ 6.0< 0.01 %0–0
M ≥ 7.0< 0.01 %0–0
Sep 11, 2026, 1:00 PM UTC – Sep 18, 2026, 1:00 PM UTC
MagnitudeProbability ≥ 1Count (95% interval)
M ≥ 3.010.40 %0–1
M ≥ 4.01.11 %0–0
M ≥ 5.00.11 %0–0
M ≥ 6.00.01 %0–0
M ≥ 7.0< 0.01 %0–0
Sep 11, 2026, 1:00 PM UTC – Oct 11, 2026, 1:00 PM UTC
MagnitudeProbability ≥ 1Count (95% interval)
M ≥ 3.034.00 %0–2
M ≥ 4.04.29 %0–1
M ≥ 5.00.44 %0–0
M ≥ 6.00.04 %0–0
M ≥ 7.0< 0.01 %0–0
Sep 11, 2026, 1:00 PM UTC – Sep 11, 2027, 1:00 PM UTC
MagnitudeProbability ≥ 1Count (95% interval)
M ≥ 3.087.98 %0–9
M ≥ 4.024.32 %0–2
M ≥ 5.02.85 %0–1
M ≥ 6.00.29 %0–0
M ≥ 7.00.03 %0–0

The range is the 95% forecast interval for the number of earthquakes. Magnitude thresholds and time windows overlap: do not add the values. Windows already in progress still refer to the entire stated period.

Source: USGS — Operational Aftershock Forecast

Volcanoes nearby

  • Amukta
    Distance: 42 km ·Stratovolcano ·Elevation: 1'066 m ·Last eruption: 1996 ·United States
  • Seguam
    Distance: 47 km ·Stratovolcano(es) ·Elevation: 1'054 m ·Last eruption: 1993 ·United States
  • Chagulak
    Distance: 52 km ·Stratovolcano ·Elevation: 1'028 m ·United States
  • Yunaska
    Distance: 86 km ·Shield ·Elevation: 550 m ·Last eruption: 1937 ·United States
  • Herbert
    Distance: 123 km ·Stratovolcano ·Elevation: 1'280 m ·United States
  • Carlisle
    Distance: 133 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 hours1
First 24 hours4
First 72 hours14
Strongest subsequent eventM5.3
M4.52026-05-22 12:46:12 UTC2.8 kmFOX ISLANDS, ALEUTIAN ISLANDS M4.22026-05-22 20:10:52 UTC7.5 km170 km E of Atka, Alaska M4.32026-05-22 20:10:52 UTC6.8 kmFOX ISLANDS, ALEUTIAN ISLANDS M4.02026-05-22 20:15:14 UTC5.8 kmFOX ISLANDS, ALEUTIAN ISLANDS M5.32026-05-23 21:49:16 UTC123.8 km###.# km ( ###.# mi) WNW (az= 302.5) from Port Orford, OR M5.32026-05-23 21:49:19 UTC91.4 kmFox Islands, Aleutian Islands M5.02026-05-23 21:49:19 UTC82.1 kmEvent of magnitude 5.0, near Anchorage (Monde) M5.12026-05-23 21:49:19 UTC88.2 kmFox Islands, Aleutian Islands M5.22026-05-23 21:49:21 UTC107.0 kmFox Islands M4.72026-05-24 09:45:22 UTC101.0 kmFox Islands, Aleutian Islands M4.52026-05-24 09:45:22 UTC107.9 kmFox Islands M3.92026-05-24 16:37:54 UTC9.9 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#23
Earlier events M≥474
Earlier events M≥537
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 UTC134.1 kmAlaska M6.22025-09-03 20:57:41 UTC127.1 km87 km SW of Nikolski, Alaska M6.12026-02-23 05:11:48 UTC134.1 km###.# km ( ###.# mi) WNW (az= 303.7) from Port Orford, OR M6.12026-02-23 05:11:48 UTC118.0 kmAlaska M6.02025-09-03 20:57:47 UTC146.4 km87 km SW of Nikolski, Alaska

Stats (last 24h)

Global (24h)
612
Country (24h)
—
—
Current earthquakes in
Magnitude Place Local time
No recent events available.

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