M 4.6 earthquake: North Pacific Ocean (Japan) — July 14, 1987

M 4.6 earthquake: North Pacific Ocean (Japan) — July 14, 1987. Epicenter 464 km S of Hamamatsu, depth 478 km, 01:33 Local (1987-07-13 16:33 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (464 km S, Japan) — 30.547, 137.917

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