M 5.3 earthquake: North Pacific Ocean (USA) — October 5, 1978

M 5.3 earthquake: North Pacific Ocean (USA) — October 5, 1978. Epicenter 859 km W of Atka, depth 33 km, 07:55 Local (1978-10-04 19:55 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (859 km W, USA) — 50.934, 173.526

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