M 4.6 earthquake: North Pacific Ocean (Japan) — March 23, 1998

M 4.6 earthquake: North Pacific Ocean (Japan) — March 23, 1998. Epicenter 839 km S of Hamamatsu, depth 462 km, 13:41 Local (1998-03-23 04:41 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (839 km S, Japan) — 27.408, 139.925

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