M 5.3 earthquake: North Pacific Ocean (Japan) — December 16, 1980

M 5.3 earthquake: North Pacific Ocean (Japan) — December 16, 1980. Epicenter 716 km S of Hamamatsu, depth 387 km, 22:08 Local (1980-12-16 13:08 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (716 km S, Japan) — 28.494, 139.662

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