M 4.5 earthquake: North Pacific Ocean (Japan) — December 6, 1984

M 4.5 earthquake: North Pacific Ocean (Japan) — December 6, 1984. Epicenter 466 km SE of Yokohama, depth 140 km, 00:09 Local (1984-12-05 15:09 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (466 km SE, Japan) — 31.582, 141.583

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