M 4.6 earthquake: North Pacific Ocean (Japan) — December 29, 1980

M 4.6 earthquake: North Pacific Ocean (Japan) — December 29, 1980. Epicenter 742 km SE of Shizuoka, depth 33 km, 20:28 Local (1980-12-29 11:28 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (742 km SE, Japan) — 29.062, 142.008

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