M 4.6 earthquake: North Pacific Ocean (Japan) — October 5, 2023

M 4.6 earthquake: North Pacific Ocean (Japan) — October 5, 2023. Epicenter 555 km S of Hamamatsu, depth 10 km, 21:34 Local (2023-10-05 12:34 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (555 km S, Japan) — 30.0685, 139.8708

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