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M5.9 Depth: 1.0 km

M5.9 Earthquake near 88 km WSW of Nikolski, Alaska

UTC time: 2026-02-23 10:02:06 UTC Local time: —

About this earthquake

A magnitude M5.9 earthquake was recorded near 88 km WSW of Nikolski, Alaska on February 23, 2026 at 10:02 UTC. The hypocenter lay relatively close to the surface at around 1 km, increasing how strongly it was felt. Earthquakes of this magnitude can damage poorly built structures.

The event was recorded by USGS.

Details

Magnitude
M5.9
Depth
1.0 km
UTC time
2026-02-23 10:02:06 UTC
Local time
—
Country
—
Source
usgs
Coordinates
52.50600, -169.95400
Temperature
5.3°C

Map

Depth profile

Depth profile Depth: 1 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 1 km
Shallow
1 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

  • Herbert
    Distance: 28 km ·Stratovolcano ·Elevation: 1'280 m ·United States
  • Cleveland
    Distance: 35 km ·Stratovolcano ·Elevation: 1'730 m ·Last eruption: 2020 ·United States
  • Tana
    Distance: 38 km ·Stratovolcano(es) ·Elevation: 1'170 m ·United States
  • Carlisle
    Distance: 44 km ·Stratovolcano ·Elevation: 1'620 m ·Last eruption: 1828 ·United States
  • Yunaska
    Distance: 48 km ·Shield ·Elevation: 550 m ·Last eruption: 1937 ·United States
  • Kagamil
    Distance: 54 km ·Stratovolcano ·Elevation: 893 m ·Last eruption: 1929 ·United States

Subsequent earthquakes nearby

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

First 6 hours3
First 24 hours5
First 72 hours11
Strongest subsequent eventM5.9
M5.42026-02-23 10:02:07 UTC11.3 km92 km SW of Nikolski, Alaska M5.92026-02-23 10:02:08 UTC3.7 kmFox Islands M4.42026-02-23 10:54:31 UTC65.0 kmFox Islands M4.22026-02-23 21:11:06 UTC9.7 km88 km SW of Nikolski, Alaska M4.22026-02-23 21:11:08 UTC6.2 kmFOX ISLANDS, ALEUTIAN ISLANDS M4.42026-02-24 10:22:07 UTC8.8 kmAlaska M2.82026-02-24 18:00:48 UTC8.2 kmFOX ISLANDS, ALEUTIAN ISLANDS M2.82026-02-24 18:00:48 UTC9.7 kmFox Islands M2.82026-02-24 18:07:55 UTC27.7 km107 km SW of Nikolski, Alaska M2.72026-02-24 18:08:00 UTC8.9 kmFox Islands M2.92026-02-24 23:33:55 UTC16.9 km83 km SW of Nikolski, Alaska M2.92026-02-27 19:31:55 UTC21.9 km90 km SW of Nikolski, Alaska

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#5
Earlier events M≥479
Earlier events M≥539
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 UTC17.8 kmAlaska M6.12026-02-23 05:11:48 UTC17.8 km###.# km ( ###.# mi) WNW (az= 303.7) from Port Orford, OR M6.12026-02-23 05:11:48 UTC18.7 kmAlaska M6.02025-09-03 20:57:47 UTC26.8 km87 km SW of Nikolski, Alaska M5.92025-09-03 20:57:50 UTC42.9 kmFox Islands, Aleutian Islands, United States [Sea: United States]

Stats (last 24h)

Global (24h)
611
Country (24h)
—
—
Current earthquakes in
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