M 4.9 earthquake: North Pacific Ocean (Japan) — December 26, 1978

M 4.9 earthquake: North Pacific Ocean (Japan) — December 26, 1978. Epicenter 551 km S of Yokohama, depth 33 km, 06:03 Local (1978-12-25 21:03 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (551 km S, Japan) — 30.813, 141.737

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