M 5.1 earthquake: North Pacific Ocean (Japan) — February 4, 1989

M 5.1 earthquake: North Pacific Ocean (Japan) — February 4, 1989. Epicenter 737 km S of Hamamatsu, depth 33 km, 08:36 Local (1989-02-03 23:36 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (737 km S, Japan) — 28.469, 140.343

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