M 4.7 earthquake: North Pacific Ocean (Japan) — July 7, 1983

M 4.7 earthquake: North Pacific Ocean (Japan) — July 7, 1983. Epicenter 256 km SE of Yokohama, depth 61 km, 09:47 Local (1983-07-07 00:47 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (256 km SE, Japan) — 33.42, 140.962

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