M 5.1 Earthquake: North Pacific Ocean (Japan) — January 31, 1986

M 5.1 Earthquake: North Pacific Ocean (Japan) — January 31, 1986. Epicenter 777 km S of Hamamatsu, depth 26 km, 03:28 Local (1986-01-30 18:28 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (777 km S, Japan) — 28.153, 140.537

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