M 4.7 earthquake: North Pacific Ocean (Japan) — September 24, 1983

M 4.7 earthquake: North Pacific Ocean (Japan) — September 24, 1983. Epicenter 461 km SE of Yokohama, depth 33 km, 03:33 Local (1983-09-23 18:33 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (461 km SE, Japan) — 31.645, 141.622

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