M 4.8 earthquake: North Pacific Ocean (Japan) — January 20, 1991

M 4.8 earthquake: North Pacific Ocean (Japan) — January 20, 1991. Epicenter 772 km S of Hamamatsu, depth 554 km, 02:51 Local (1991-01-19 17:51 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (772 km S, Japan) — 27.872, 139.102

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