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M5.1 Earthquake near 99 km SSW of Nikolski, Alaska

UTC time: 2025-09-04 19:01:15 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
M5.1
Depth
71.0 km
Source
USGS

99 km SSW of Nikolski, Alaska

Map

M5.1 Earthquake near 99 km SSW of Nikolski, Alaska · 2025-09-04 — Map showing the location of the epicenter
M5.1 Earthquake near 99 km SSW of Nikolski, Alaska · 2025-09-04 — Map showing the location of the epicenter

About this earthquake

A magnitude M5.1 earthquake was recorded near 99 km SSW of Nikolski, Alaska on September 4, 2025 at 19:01 UTC. The earthquake originated at an intermediate depth of about 71 km. Earthquakes of this magnitude can damage poorly built structures.

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

Details

ID
252d08e9c1844b9e72c9d61fc4dcc5f148c83eb3
Magnitude
M5.1
Depth
71.0 km
UTC time
2025-09-04 19:01:15 UTC
Local time
—
Country
—
Source
usgs
Coordinates
52.09500, -169.34000
Temperature
12.3°C

Depth profile

Depth profile Depth: 71 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 71 km
Intermediate
71 km
Why depth matters

Intermediate-depth quakes are felt across a wider area but usually cause less surface damage.

Depth classes per USGS

Volcanoes nearby

  • Tana
    Distance: 87 km ·Stratovolcano(es) ·Elevation: 1'170 m ·United States
  • Herbert
    Distance: 89 km ·Stratovolcano ·Elevation: 1'280 m ·United States
  • Cleveland
    Distance: 91 km ·Stratovolcano ·Elevation: 1'730 m ·Last eruption: 2020 ·United States
  • Kagamil
    Distance: 101 km ·Stratovolcano ·Elevation: 893 m ·Last eruption: 1929 ·United States
  • Carlisle
    Distance: 101 km ·Stratovolcano ·Elevation: 1'620 m ·Last eruption: 1828 ·United States
  • Yunaska
    Distance: 107 km ·Shield ·Elevation: 550 m ·Last eruption: 1937 ·United States

Radius · 100 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Nikolski Air StationUnited States · IKO · PAKO
    99.8 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-10-04

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 hours4
First 24 hours4
First 72 hours9
Strongest subsequent eventM5.6
M5.12025-09-04 19:54:23 UTC26.1 kmFOX ISLANDS, ALEUTIAN ISLANDS M5.22025-09-04 19:54:24 UTC40.7 kmFox Islands, Aleutian Islands M5.02025-09-04 19:54:24 UTC47.5 kmEvent of magnitude 5.0, near of Anchorage (Monde) M5.02025-09-04 19:54:25 UTC37.5 km124 km S of Nikolski, Alaska M5.42025-09-06 20:40:39 UTC43.3 kmFox Islands, Aleutian Islands M5.32025-09-06 20:40:40 UTC31.5 km M5.42025-09-06 20:40:41 UTC31.5 kmFOX ISLANDS, ALEUTIAN ISLANDS M5.22025-09-06 20:40:44 UTC32.4 km79 km SW of Nikolski, Alaska M5.02025-09-06 20:40:55 UTC49.1 kmFox Islands, Aleutian Islands M4.72025-09-13 22:29:54 UTC112.9 kmFox Islands, Aleutian Islands M4.52025-09-13 22:29:58 UTC100.8 km176 km SW of Nikolski, Alaska M5.62025-09-16 09:02:35 UTC31.3 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#15
Earlier events M≥440
Earlier events M≥516
Compared since2025-01-13

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

Strongest earlier events

M6.02025-09-03 20:57:47 UTC35.1 km87 km SW of Nikolski, Alaska M5.92025-09-03 20:57:50 UTC19.9 kmFox Islands, Aleutian Islands, United States [Sea: United States] M5.82025-09-03 20:57:51 UTC133.1 kmFox Islands, Aleutian Islands M5.82025-09-03 20:57:52 UTC15.9 km96 km SSW of Nikolski, Alaska M5.82025-09-03 20:57:48 UTC38.6 kmFox Islands, Aleutian Islands

Stats (last 24h)

Global (24h)
467
Country (24h)
—
—
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