M 4.8 earthquake: North Pacific Ocean (Japan) — April 7, 1983

M 4.8 earthquake: North Pacific Ocean (Japan) — April 7, 1983. Epicenter 439 km NE of Kushiro, depth 44 km, 07:23 Local (1983-04-06 21:23 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (439 km NE, Japan) — 44.454, 149.435

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