M 4.9 earthquake: North Pacific Ocean (Japan) — October 21, 1997

M 4.9 earthquake: North Pacific Ocean (Japan) — October 21, 1997. Epicenter 449 km SE of Yokohama, depth 33 km, 02:11 Local (1997-10-20 17:11 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (449 km SE, Japan) — 31.723, 141.513

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