M 4.6 earthquake: North Pacific Ocean (Japan) — March 30, 1986

M 4.6 earthquake: North Pacific Ocean (Japan) — March 30, 1986. Epicenter 891 km S of Hamamatsu, depth 554 km, 08:07 Local (1986-03-29 23:07 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (891 km S, Japan) — 26.954, 140.023

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