M 4.7 earthquake: North Pacific Ocean (Japan) — December 21, 1978

M 4.7 earthquake: North Pacific Ocean (Japan) — December 21, 1978. Epicenter 378 km E of Kushiro, depth 33 km, 16:36 Local (1978-12-21 06:36 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (378 km E, Japan) — 44.057, 148.815

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