M 4.7 earthquake: North Pacific Ocean (Japan) — April 11, 1980

M 4.7 earthquake: North Pacific Ocean (Japan) — April 11, 1980. Epicenter 878 km S of Yokohama, depth 33 km, 02:28 Local (1980-04-10 16:28 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (878 km S, Japan) — 28.029, 142.828

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