M 4.7 earthquake: North Pacific Ocean (Japan) — December 25, 1983

M 4.7 earthquake: North Pacific Ocean (Japan) — December 25, 1983. Epicenter 751 km S of Hamamatsu, depth 531 km, 20:28 Local (1983-12-25 11:28 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (751 km S, Japan) — 28.119, 139.432

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