M 4.8 earthquake: North Pacific Ocean (Japan) — December 23, 1991

M 4.8 earthquake: North Pacific Ocean (Japan) — December 23, 1991. Epicenter 643 km E of Kushiro, depth 33 km, 02:49 Local (1991-12-22 16:49 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (643 km E, Japan) — 44.765, 152.012

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