M 4.9 earthquake: North Pacific Ocean (Japan) — September 30, 1997

M 4.9 earthquake: North Pacific Ocean (Japan) — September 30, 1997. Epicenter 452 km SE of Yokohama, depth 10 km, 15:37 Local (1997-09-30 06:37 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (452 km SE, Japan) — 31.83, 141.865

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