M 4.9 earthquake: North Pacific Ocean (Japan) — December 28, 2023

M 4.9 earthquake: North Pacific Ocean (Japan) — December 28, 2023. Epicenter 423 km NE of Kushiro, depth 35 km, 22:40 Local (2023-12-28 12:40 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (423 km NE, Japan) — 44.5032, 149.1989

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