M 5.1 earthquake: North Pacific Ocean (Japan) — December 23, 1991

M 5.1 earthquake: North Pacific Ocean (Japan) — December 23, 1991. Epicenter 627 km NE of Kushiro, depth 33 km, 12:43 Local (1991-12-23 02:43 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (627 km NE, Japan) — 44.956, 151.708

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