M 4.9 earthquake: North Pacific Ocean (Japan) — July 1, 1983

M 4.9 earthquake: North Pacific Ocean (Japan) — July 1, 1983. Epicenter 441 km E of Kushiro, depth 33 km, 18:53 Local (1983-07-01 08:53 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (441 km E, Japan) — 44.26, 149.556

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