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M5.5 Depth: 18.5 km

M5.5 Earthquake

UTC time: 2025-09-01 11:02:08 UTC Local time: —
M5.5 earthquake near Earthquake location (56.279, -151.984) on Sep 1, 2025 — map of epicenter and shaking intensity | QuakeMap24
M5.5 Earthquake · 2025-09-01 11:02:08 UTC

About this earthquake

A magnitude M5.5 earthquake was recorded near Earthquake location (56.279, -151.984) on September 1, 2025 at 11:02 UTC. The hypocenter lay relatively close to the surface at around 19 km, increasing how strongly it was felt. Earthquakes of this magnitude can damage poorly built structures.

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

Details

Magnitude
M5.5
Depth
18.5 km
UTC time
2025-09-01 11:02:08 UTC
Local time
—
Country
—
Source
nnsn
Coordinates
56.27900, -151.98400

Map

Depth profile

Depth profile Depth: 18.5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 18.5 km
Shallow
18.5 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

Nearby population centers

Distances are straight-line distances from the epicenter. Population data: GeoNames.

PlaceDistanceDirectionPopulation
Anchorage562.1 kmN289'600

GeoNames · CC BY 4.0

Volcanoes nearby

  • Alaska Peninsula Arc at 155.4°W
    Distance: 272 km ·Lava dome ·Elevation: 402 m ·United States
  • Steller
    Distance: 279 km ·Stratovolcano ·Elevation: 2'279 m ·United States
  • Denison
    Distance: 280 km ·Stratovolcano ·Elevation: 2'287 m ·United States
  • Snowy Mountain
    Distance: 280 km ·Stratovolcano(es) ·Elevation: 2'162 m ·Last eruption: 1710 ·United States
  • Kukak
    Distance: 280 km ·Stratovolcano ·Elevation: 2'043 m ·United States
  • Katmai
    Distance: 285 km ·Stratovolcano ·Elevation: 2'047 m ·Last eruption: 1912 ·United States

Subsequent earthquakes nearby

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

First 6 hours17
First 24 hours26
First 72 hours35
Strongest subsequent eventM5.8
M5.42025-09-01 11:02:09 UTC55.7 kmKodiak Island Region, Alaska M5.32025-09-01 11:02:10 UTC52.5 kmEvent of magnitude 5.3, near of Anchorage (Monde) M5.82025-09-01 11:02:10 UTC28.1 kmUnited States [Sea] M5.02025-09-01 11:02:11 UTC0.0 km130 km SE of Old Harbor, Alaska M4.02025-09-01 11:07:25 UTC10.2 kmKODIAK ISLAND REGION, ALASKA M3.92025-09-01 11:08:50 UTC8.7 km122 km SE of Old Harbor, Alaska M3.12025-09-01 11:16:43 UTC12.2 km118 km SE of Old Harbor, Alaska M3.62025-09-01 11:16:43 UTC30.6 kmKodiak Island region M3.02025-09-01 11:26:52 UTC36.0 kmKodiak Island region M5.22025-09-01 11:45:45 UTC28.6 kmKodiak Island Region, Alaska M4.92025-09-01 11:45:45 UTC27.1 kmKODIAK ISLAND REGION, ALASKA M5.02025-09-01 11:45:46 UTC37.4 kmEvent of magnitude 5.0, near of Anchorage (Monde)

Stats (last 24h)

Global (24h)
602
Country (24h)
—
—
Current earthquakes in
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No recent events available.

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