M 4.6 earthquake: North Pacific Ocean (Japan) — November 27, 1987

M 4.6 earthquake: North Pacific Ocean (Japan) — November 27, 1987. Epicenter 783 km S of Hamamatsu, depth 473 km, 10:37 Local (1987-11-27 01:37 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (783 km S, Japan) — 27.879, 139.708

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