M 4.5 earthquake: Aleutian Islands (Atka, USA) — April 4, 2026

M 4.5 earthquake: Aleutian Islands (Atka, USA) — April 4, 2026. Epicenter 512 km W of Atka, depth 22 km, 21:39 Local (2026-04-04 09:39 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Aleutian Islands (512 km W of Atka, USA) — 51.1121, 178.5825

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