M 4.6 earthquake: Aleutian Islands (Atka, USA) — December 19, 1977

M 4.6 earthquake: Aleutian Islands (Atka, USA) — December 19, 1977. Epicenter 177 km SW of Atka, depth 54 km, 09:31 Local (1977-12-19 20:31 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Aleutian Islands (177 km SW of Atka, USA) — 51.343, -176.374

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