M 4.8 earthquake: North Pacific Ocean (Japan) — July 20, 1987

M 4.8 earthquake: North Pacific Ocean (Japan) — July 20, 1987. Epicenter 358 km E of Kushiro, depth 33 km, 22:56 Local (1987-07-20 12:56 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (358 km E, Japan) — 44.051, 148.558

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