M 6.1 earthquake: North Pacific Ocean (Japan) — November 20, 1983

M 6.1 earthquake: North Pacific Ocean (Japan) — November 20, 1983. Epicenter 339 km E of Kushiro, depth 29 km, 10:44 Local (1983-11-20 00:44 UTC). Shaking felt by ~706K people. Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (339 km E, Japan) — 43.706, 148.444

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