M 4.6 earthquake: North Pacific Ocean (USA) — December 29, 1987

M 4.6 earthquake: North Pacific Ocean (USA) — December 29, 1987. Epicenter 342 km W of Coos Bay, depth 10 km, 15:43 Local (1987-12-30 00:43 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (342 km W, USA) — 44.032, -128.375

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