M 4.9 earthquake: North Pacific Ocean (Japan) — October 5, 1977

M 4.9 earthquake: North Pacific Ocean (Japan) — October 5, 1977. Epicenter 791 km S of Yokohama, depth 33 km, 12:14 Local (1977-10-05 03:14 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (791 km S, Japan) — 28.715, 142.381

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