M 4.6 earthquake: North Pacific Ocean (Japan) — April 14, 1990

M 4.6 earthquake: North Pacific Ocean (Japan) — April 14, 1990. Epicenter 821 km S of Hamamatsu, depth 474 km, 17:06 Local (1990-04-14 08:06 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (821 km S, Japan) — 27.571, 139.89

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