M 4.9 earthquake: North Pacific Ocean (Japan) — December 18, 1984

M 4.9 earthquake: North Pacific Ocean (Japan) — December 18, 1984. Epicenter 409 km NE of Kushiro, depth 33 km, 20:25 Local (1984-12-18 10:25 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (409 km NE, Japan) — 44.437, 149.042

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