M 6.5 earthquake: Aleutian Islands (Atka, USA) — March 11, 1957

M 6.5 earthquake: Aleutian Islands (Atka, USA) — March 11, 1957. Epicenter 80 km SE of Atka, depth 25 km, 20:28 Local (1957-03-12 07:28 UTC). Shaking felt by ~79 people. Readings from every reporting agency, affected towns, aftershock sequence.

Aleutian Islands (80 km SE of Atka, USA) — 51.587, -173.589

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