M 4.7 earthquake: Aleutian Islands (Atka, USA) — April 19, 1977

M 4.7 earthquake: Aleutian Islands (Atka, USA) — April 19, 1977. Epicenter 354 km W of Atka, depth 33 km, 13:19 Local (1977-04-20 00:19 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Aleutian Islands (354 km W of Atka, USA) — 51.118, -179.034

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