M 4.9 earthquake: North Pacific Ocean (Japan) — January 21, 1986

M 4.9 earthquake: North Pacific Ocean (Japan) — January 21, 1986. Epicenter 773 km S of Hamamatsu, depth 33 km, 12:06 Local (1986-01-21 03:06 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (773 km S, Japan) — 28.176, 140.497

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