M 4.6 earthquake: Aleutian Islands (Atka, USA) — April 5, 1981

M 4.6 earthquake: Aleutian Islands (Atka, USA) — April 5, 1981. Epicenter 731 km W of Atka, depth 33 km, 11:17 Local (1981-04-04 23:17 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Aleutian Islands (731 km W of Atka, USA) — 51.5, 175.212

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