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M4.8 earthquake — 77 km SE of Atka, Alaska

M4.8 earthquake near 77 km SE of Atka, Alaska

An magnitude 4.8 earthquake occurred 77 km SE of Atka, Alaska on Aug 2, 2026 at 05:18 UTC. The epicenter was at a depth of 44 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

MagnitudeM4.8
Depth44.3 km
Coordinates51.658, -173.480
TimeAug 2, 05:18 UTC
Location77 km SE of Atka, Alaska
USGS event IDus6000thkg

What this magnitude typically means

Light earthquakes are felt by most people nearby but rarely cause damage. Distance, depth, and soil type determine whether a quake feels sharp or barely noticeable. 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
M4.39 kmJul 26, 13:18 UTC72 km SE of Atka, Alaska
M3.011 kmJul 27, 12:47 UTC87 km SE of Atka, Alaska
M4.913 kmAug 1, 23:07 UTC83 km SSE of Atka, Alaska
M3.113 kmJul 26, 08:50 UTC90 km SE of Atka, Alaska
M3.514 kmJul 26, 09:44 UTC75 km SE of Atka, Alaska
M3.714 kmJul 26, 16:07 UTC91 km SE of Atka, Alaska

Earthquake activity in this area

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