M 4.6 earthquake: North Pacific Ocean (Japan) — December 6, 1974

M 4.6 earthquake: North Pacific Ocean (Japan) — December 6, 1974. Epicenter 585 km SE of Yokohama, depth 33 km, 05:24 Local (1974-12-05 20:24 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (585 km SE, Japan) — 30.686, 142.326

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