M 5.3 earthquake: North Pacific Ocean (USA) — August 19, 1977

M 5.3 earthquake: North Pacific Ocean (USA) — August 19, 1977. Epicenter 782 km W of Atka, depth 33 km, 00:56 Local (1977-08-18 12:56 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (782 km W, USA) — 50.912, 174.668

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