M 4.8 earthquake: North Pacific Ocean (Japan) — January 1, 1977

M 4.8 earthquake: North Pacific Ocean (Japan) — January 1, 1977. Epicenter 526 km SE of Yokohama, depth 33 km, 06:52 Local (1976-12-31 21:52 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (526 km SE, Japan) — 31.249, 142.25

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