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M3.1 earthquake — 233 km ESE of Attu Station, Alaska

M3.1 earthquake near 233 km ESE of Attu Station, Alaska

An magnitude 3.1 earthquake occurred 233 km ESE of Attu Station, Alaska on Aug 20, 2026 at 21:50 UTC. The epicenter was at a depth of 10 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

MagnitudeM3.1
Depth10.0 km
Coordinates52.011, 176.334
TimeAug 20, 21:50 UTC
Location233 km ESE of Attu Station, Alaska
USGS event IDus6000tmpe

What this magnitude typically means

Minor earthquakes are often felt close to the epicenter but almost never cause damage. Whether you feel one at all depends on how near and how shallow it is. 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
M4.01 kmAug 22, 19:19 UTC232 km ESE of Attu Station, Alaska
M3.01 kmAug 20, 22:06 UTC233 km ESE of Attu Station, Alaska
M3.01 kmAug 20, 01:31 UTC232 km ESE of Attu Station, Alaska
M3.42 kmAug 21, 01:49 UTC235 km ESE of Attu Station, Alaska
M3.63 kmAug 20, 10:53 UTC231 km ESE of Attu Station, Alaska
M3.43 kmAug 22, 18:55 UTC233 km ESE of Attu Station, Alaska

Earthquake activity in this area

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