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M6.2 Depth: 15.0 km

M6.2 Earthquake near 87 km SW of Nikolski, Alaska

UTC time: 2025-09-03 20:57:41 UTC Local time: —

About this earthquake

A magnitude M6.2 earthquake was recorded near 87 km SW of Nikolski, Alaska on September 3, 2025 at 20:57 UTC. With a focal depth of about 15 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this magnitude can cause significant damage in populated areas.

The event was recorded by NNSN.

Details

Magnitude
M6.2
Depth
15.0 km
UTC time
2025-09-03 20:57:41 UTC
Local time
—
Country
—
Source
nnsn
Coordinates
51.25800, -172.23500

Map

Depth profile

Depth profile Depth: 15 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 15 km
Shallow
15 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

  • Seguam
    Distance: 119 km ·Stratovolcano(es) ·Elevation: 1'054 m ·Last eruption: 1993 ·United States
  • Amukta
    Distance: 154 km ·Stratovolcano ·Elevation: 1'066 m ·Last eruption: 1996 ·United States
  • Chagulak
    Distance: 164 km ·Stratovolcano ·Elevation: 1'028 m ·United States
  • Atka Volcanic Complex
    Distance: 177 km ·Stratovolcano(es) ·Elevation: 1'518 m ·Last eruption: 2025 ·United States
  • Yunaska
    Distance: 189 km ·Shield ·Elevation: 550 m ·Last eruption: 1937 ·United States
  • Herbert
    Distance: 220 km ·Stratovolcano ·Elevation: 1'280 m ·United States

Subsequent earthquakes nearby

Events recorded after this earthquake within 250 km. They are not automatically classified as aftershocks.

First 6 hours8
First 24 hours17
First 72 hours22
Strongest subsequent eventM6.0
M6.02025-09-03 20:57:47 UTC212.7 km87 km SW of Nikolski, Alaska M5.82025-09-03 20:57:48 UTC218.3 kmFox Islands, Aleutian Islands M5.72025-09-03 20:57:48 UTC216.2 kmEvent of magnitude 5.7, near of Anchorage (Monde) M5.92025-09-03 20:57:50 UTC210.1 kmFox Islands, Aleutian Islands, United States [Sea: United States] M5.82025-09-03 20:57:51 UTC234.8 kmFox Islands, Aleutian Islands M5.82025-09-03 20:57:52 UTC212.4 km96 km SSW of Nikolski, Alaska M4.92025-09-04 00:29:40 UTC218.7 kmFox Islands, Aleutian Islands M4.42025-09-04 00:29:45 UTC222.8 km77 km SW of Nikolski, Alaska M5.42025-09-04 19:01:10 UTC216.4 km M5.12025-09-04 19:01:11 UTC216.5 km91 km SSW of Nikolski, Alaska M5.12025-09-04 19:01:11 UTC210.4 kmFox Islands, Aleutian Islands M5.22025-09-04 19:01:12 UTC225.0 kmFox Islands, Aleutian Islands

Historical context nearby

Comparison with recorded earthquakes before this event within 250 km.

Magnitude rank#1
Earlier events M≥445
Earlier events M≥59
Compared since2025-01-13

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

Strongest earlier events

M5.52025-08-14 18:00:58 UTC174.4 kmFox Islands, Aleutian Islands M5.42025-07-16 14:21:52 UTC120.2 km58 km ESE of Atka, Alaska M5.42025-07-16 14:21:52 UTC127.7 kmANDREANOF ISLANDS, ALEUTIAN IS. M5.22025-08-14 18:00:59 UTC168.7 km132 km SW of Nikolski, Alaska M5.22025-05-30 09:44:29 UTC152.1 km37 km ENE of Atka, Alaska

Stats (last 24h)

Global (24h)
606
Country (24h)
—
—
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