M 4.9 earthquake: North Pacific Ocean (Japan) — August 18, 2023

M 4.9 earthquake: North Pacific Ocean (Japan) — August 18, 2023. Epicenter 496 km S of Hamamatsu, depth 435 km, 09:34 Local (2023-08-18 00:34 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (496 km S, Japan) — 30.2961, 138.3881

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