M 4.6 earthquake: North Pacific Ocean (Japan) — January 17, 1983

M 4.6 earthquake: North Pacific Ocean (Japan) — January 17, 1983. Epicenter 420 km SE of Hamamatsu, depth 151 km, 18:00 Local (1983-01-17 09:00 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (420 km SE, Japan) — 31.363, 139.804

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