M 5.5 earthquake: Aleutian Islands (Atka, USA) — April 16, 1973

M 5.5 earthquake: Aleutian Islands (Atka, USA) — April 16, 1973. Epicenter 341 km W of Atka, depth 54 km, 03:48 Local (1973-04-16 14:48 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Aleutian Islands (341 km W of Atka, USA) — 51.123, -178.829

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