M 6.0 earthquake: North Pacific Ocean (Japan) — February 1, 1973

M 6.0 earthquake: North Pacific Ocean (Japan) — February 1, 1973. Epicenter 738 km S of Hamamatsu, depth 498 km, 05:55 Local (1973-01-31 20:55 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (738 km S, Japan) — 28.206, 139.227

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