M 4.7 earthquake: North Pacific Ocean (Japan) — September 20, 2023

M 4.7 earthquake: North Pacific Ocean (Japan) — September 20, 2023. Epicenter 301 km S of Kushiro, depth 10 km, 10:49 Local (2023-09-20 00:49 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (301 km S, Japan) — 40.3241, 145.0828

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