M 5.3 earthquake: North Pacific Ocean (USA) — September 5, 1977

M 5.3 earthquake: North Pacific Ocean (USA) — September 5, 1977. Epicenter 531 km W of Atka, depth 33 km, 04:44 Local (1977-09-04 16:44 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (531 km W, USA) — 50.848, 178.426

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