M 4.6 earthquake: North Pacific Ocean (Japan) — April 8, 1988

M 4.6 earthquake: North Pacific Ocean (Japan) — April 8, 1988. Epicenter 613 km NE of Kushiro, depth 33 km, 19:37 Local (1988-04-08 09:37 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (613 km NE, Japan) — 44.975, 151.517

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