M 5.8 earthquake: North Pacific Ocean (Japan) — July 31, 1988

M 5.8 earthquake: North Pacific Ocean (Japan) — July 31, 1988. Epicenter 485 km NE of Kushiro, depth 61 km, 07:07 Local (1988-07-30 21:07 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (485 km NE, Japan) — 44.771, 149.89

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