M 4.6 earthquake: Aleutian Islands (Atka, USA) — October 21, 2012

M 4.6 earthquake: Aleutian Islands (Atka, USA) — October 21, 2012. Epicenter 643 km W of Atka, depth 20 km, 20:43 Local (2012-10-21 08:43 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Aleutian Islands (643 km W of Atka, USA) — 51.91, 176.395

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