M 4.6 earthquake: North Pacific Ocean (Japan) — December 7, 1974

M 4.6 earthquake: North Pacific Ocean (Japan) — December 7, 1974. Epicenter 587 km SE of Yokohama, depth 33 km, 20:03 Local (1974-12-07 11:03 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (587 km SE, Japan) — 30.673, 142.325

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