M 4.5 earthquake: North Pacific Ocean (Japan) — October 1, 2023

M 4.5 earthquake: North Pacific Ocean (Japan) — October 1, 2023. Epicenter 553 km S of Yokohama, depth 10 km, 02:41 Local (2023-09-30 17:41 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (553 km S, Japan) — 30.8098, 141.808

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