M 4.6 earthquake: North Pacific Ocean (Japan) — January 28, 2026

M 4.6 earthquake: North Pacific Ocean (Japan) — January 28, 2026. Epicenter 921 km SE of Hamamatsu, depth 50 km, 12:27 Local (2026-01-28 03:27 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (921 km SE, Japan) — 27.226, 141.8687

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