M 4.9 earthquake: Aleutian Islands (Atka, USA) — August 17, 1973

M 4.9 earthquake: Aleutian Islands (Atka, USA) — August 17, 1973. Epicenter 189 km SW of Atka, depth 51 km, 00:08 Local (1973-08-17 10:08 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Aleutian Islands (189 km SW of Atka, USA) — 51.382, -176.614

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