M 4.5 earthquake: North Pacific Ocean (Japan) — March 31, 1979

M 4.5 earthquake: North Pacific Ocean (Japan) — March 31, 1979. Epicenter 400 km NE of Kushiro, depth 33 km, 23:37 Local (1979-03-31 13:37 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (400 km NE, Japan) — 44.487, 148.898

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