M 4.6 earthquake: Aleutian Islands (Atka, USA) — June 23, 1978

M 4.6 earthquake: Aleutian Islands (Atka, USA) — June 23, 1978. Epicenter 342 km W of Atka, depth 66 km, 15:20 Local (1978-06-24 01:20 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Aleutian Islands (342 km W of Atka, USA) — 51.278, -178.946

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