M 4.6 earthquake: North Pacific Ocean (Japan) — March 23, 1978

M 4.6 earthquake: North Pacific Ocean (Japan) — March 23, 1978. Epicenter 438 km NE of Kushiro, depth 33 km, 14:36 Local (1978-03-23 04:36 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (438 km NE, Japan) — 44.437, 149.435

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