M 4.9 earthquake: North Pacific Ocean (Japan) — March 23, 1978

M 4.9 earthquake: North Pacific Ocean (Japan) — March 23, 1978. Epicenter 417 km NE of Kushiro, depth 41 km, 15:38 Local (1978-03-23 05:38 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (417 km NE, Japan) — 44.342, 149.207

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