M 6.4 earthquake: Aleutian Islands (Atka, USA) — April 28, 1955

M 6.4 earthquake: Aleutian Islands (Atka, USA) — April 28, 1955. Epicenter 291 km W of Atka, depth 35 km, 08:05 Local (1955-04-28 19:05 UTC). Shaking felt by ~61 people. Readings from every reporting agency, affected towns, aftershock sequence.

Aleutian Islands (291 km W of Atka, USA) — 51.41, -178.236

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