M 5.1 earthquake: North Pacific Ocean (Japan) — October 7, 1978

M 5.1 earthquake: North Pacific Ocean (Japan) — October 7, 1978. Epicenter 1038 km S of Yokohama, depth 33 km, 20:46 Local (1978-10-07 10:46 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (1038 km S, Japan) — 26.668, 143.353

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