M 4.6 Earthquake: Aleutian Islands (Atka, USA) — September 4, 1977

M 4.6 Earthquake: Aleutian Islands (Atka, USA) — September 4, 1977. Epicenter 507 km W of Atka, depth 53 km, 13:54 Local (1977-09-04 23:54 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Aleutian Islands (507 km W of Atka, USA) — 51.466, 178.516

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