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M5.0 earthquake — 231 km ESE of Attu Station, Alaska

M5.0 earthquake near 231 km ESE of Attu Station, Alaska

A moderate magnitude 5.0 earthquake occurred 231 km ESE of Attu Station, Alaska on Aug 23, 2026 at 23:20 UTC. The epicenter was at a depth of 8 km — a shallow earthquake. Shallow quakes concentrate their energy near the surface, so they tend to produce stronger shaking close to the epicenter.

Event data

MagnitudeM5.0
Depth8.1 km
Coordinates52.191, 176.430
TimeAug 23, 23:20 UTC
Location231 km ESE of Attu Station, Alaska
USGS event IDus6000tn19

What this magnitude typically means

Moderate earthquakes are widely felt and can cause light damage close to the epicenter. The shaking you actually experience depends on how far away you are and what kind of ground you are on. Tremor does not compute a single local shaking figure here, because how strong a quake feels at any address depends on distance, depth and local geology — open the interactive globe to explore the ShakeMap and estimated intensity.

Nearby recent earthquakes

MagnitudeDistanceTime (UTC)Location
M3.97 kmAug 26, 01:21 UTC229 km ESE of Attu Station, Alaska
M3.012 kmAug 24, 11:17 UTC230 km ESE of Attu Station, Alaska
M2.813 kmAug 25, 16:02 UTC233 km ESE of Attu Station, Alaska
M2.815 kmAug 25, 13:39 UTC231 km ESE of Attu Station, Alaska
M2.919 kmAug 24, 19:41 UTC232 km ESE of Attu Station, Alaska
M3.220 kmAug 24, 17:01 UTC229 km ESE of Attu Station, Alaska

Earthquake activity in this area

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Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.