M 4.5 earthquake: North Pacific Ocean (Japan) — September 4, 1974

M 4.5 earthquake: North Pacific Ocean (Japan) — September 4, 1974. Epicenter 540 km S of Hamamatsu, depth 451 km, 04:56 Local (1974-09-03 19:56 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (540 km S, Japan) — 29.947, 138.787

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