M 4.7 earthquake: North Pacific Ocean (Japan) — February 21, 1990

M 4.7 earthquake: North Pacific Ocean (Japan) — February 21, 1990. Epicenter 730 km S of Yokohama, depth 42 km, 23:10 Local (1990-02-21 14:10 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (730 km S, Japan) — 29.253, 142.22

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