M 4.6 earthquake: North Pacific Ocean (USA) — July 16, 1977

M 4.6 earthquake: North Pacific Ocean (USA) — July 16, 1977. Epicenter 275 km W of Coos Bay, depth 15 km, 12:06 Local (1977-07-16 19:06 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (275 km W, USA) — 43.702, -127.602

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