M 4.9 earthquake: North Pacific Ocean (Japan) — May 2, 1978

M 4.9 earthquake: North Pacific Ocean (Japan) — May 2, 1978. Epicenter 748 km S of Hamamatsu, depth 426 km, 00:12 Local (1978-05-01 15:12 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (748 km S, Japan) — 28.254, 139.905

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