M 4.9 earthquake: North Pacific Ocean (Japan) — May 30, 1977

M 4.9 earthquake: North Pacific Ocean (Japan) — May 30, 1977. Epicenter 384 km S of Hamamatsu, depth 381 km, 02:25 Local (1977-05-29 17:25 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (384 km S, Japan) — 31.3, 138.303

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