M 4.8 earthquake: North Pacific Ocean (Japan) — December 21, 2025

M 4.8 earthquake: North Pacific Ocean (Japan) — December 21, 2025. Epicenter 289 km E of Kushiro, depth 10 km, 08:46 Local (2025-12-20 23:46 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (289 km E, Japan) — 43.6347, 147.8298

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