M 4.9 earthquake: North Pacific Ocean (USA) — December 31, 1986

M 4.9 earthquake: North Pacific Ocean (USA) — December 31, 1986. Epicenter 261 km W of Coos Bay, depth 10 km, 04:17 Local (1986-12-31 12:17 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (261 km W, USA) — 43.613, -127.429

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