M 4.9 earthquake: North Pacific Ocean (Japan) — September 7, 1979

M 4.9 earthquake: North Pacific Ocean (Japan) — September 7, 1979. Epicenter 734 km S of Hamamatsu, depth 435 km, 09:42 Local (1979-09-07 00:42 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (734 km S, Japan) — 28.31, 139.58

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