M 5.5 earthquake: North Pacific Ocean (Japan) — October 4, 2023

M 5.5 earthquake: North Pacific Ocean (Japan) — October 4, 2023. Epicenter 563 km SE of Yokohama, depth 8 km, 14:57 Local (2023-10-04 05:57 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (563 km SE, Japan) — 30.8019, 142.0655

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