M 4.6 earthquake: North Pacific Ocean (Japan) — April 27, 1978

M 4.6 earthquake: North Pacific Ocean (Japan) — April 27, 1978. Epicenter 425 km NE of Kushiro, depth 33 km, 03:42 Local (1978-04-26 17:42 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (425 km NE, Japan) — 44.343, 149.303

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