M 4.7 earthquake: North Pacific Ocean (Japan) — October 31, 1985

M 4.7 earthquake: North Pacific Ocean (Japan) — October 31, 1985. Epicenter 740 km SE of Hamamatsu, depth 33 km, 22:12 Local (1985-10-31 13:12 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (740 km SE, Japan) — 28.566, 140.706

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