M 5.6 earthquake: North Pacific Ocean (Japan) — September 5, 1977

M 5.6 earthquake: North Pacific Ocean (Japan) — September 5, 1977. Epicenter 255 km SE of Yokohama, depth 17 km, 01:39 Local (1977-09-04 16:39 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (255 km SE, Japan) — 33.306, 140.661

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