M 4.6 earthquake: North Pacific Ocean (Japan) — June 21, 1997

M 4.6 earthquake: North Pacific Ocean (Japan) — June 21, 1997. Epicenter 252 km SE of Yokohama, depth 23 km, 05:16 Local (1997-06-20 20:16 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (252 km SE, Japan) — 33.945, 141.678

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