M 4.8 earthquake: North Pacific Ocean (Japan) — December 18, 1984

M 4.8 earthquake: North Pacific Ocean (Japan) — December 18, 1984. Epicenter 437 km E of Kushiro, depth 33 km, 09:38 Local (1984-12-17 23:38 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (437 km E, Japan) — 44.178, 149.537

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