M 4.5 earthquake: Aleutian Islands (Atka, USA) — August 16, 1991

M 4.5 earthquake: Aleutian Islands (Atka, USA) — August 16, 1991. Epicenter 172 km SW of Atka, depth 33 km, 23:10 Local (1991-08-17 08:10 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Aleutian Islands (172 km SW of Atka, USA) — 51.348, -176.293

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