M 4.9 Earthquake: North Pacific Ocean (Japan) — December 4, 2023

M 4.9 Earthquake: North Pacific Ocean (Japan) — December 4, 2023. Epicenter 398 km SE of Hamamatsu, depth 10 km, 07:08 Local (2023-12-03 22:08 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (398 km SE, Japan) — 31.5297, 139.6706

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