M 5.4 earthquake: North Pacific Ocean (Japan) — August 6, 1970

M 5.4 earthquake: North Pacific Ocean (Japan) — August 6, 1970. Epicenter 354 km SE of Hamamatsu, depth 27 km, 11:37 Local (1970-08-06 02:37 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (354 km SE, Japan) — 31.825, 139.313

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