M 5.6 earthquake: North Pacific Ocean (Japan) — August 4, 1970

M 5.6 earthquake: North Pacific Ocean (Japan) — August 4, 1970. Epicenter 363 km SE of Hamamatsu, depth 15 km, 21:41 Local (1970-08-04 12:41 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (363 km SE, Japan) — 31.746, 139.35

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