M 4.6 earthquake: North Pacific Ocean (Japan) — April 1, 1985

M 4.6 earthquake: North Pacific Ocean (Japan) — April 1, 1985. Epicenter 708 km S of Hamamatsu, depth 104 km, 06:38 Local (1985-03-31 21:38 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (708 km S, Japan) — 28.747, 140.346

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