M 4.7 earthquake: Aleutian Islands (Atka, USA) — April 6, 1973

M 4.7 earthquake: Aleutian Islands (Atka, USA) — April 6, 1973. Epicenter 89 km SE of Atka, depth 40 km, 07:46 Local (1973-04-06 18:46 UTC). Shaking felt by ~61 people. Readings from every reporting agency, affected towns, aftershock sequence.

Aleutian Islands (89 km SE of Atka, USA) — 51.591, -173.348

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