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

M 4.9 earthquake: North Pacific Ocean (Japan) — March 23, 1978. Epicenter 443 km NE of Kushiro, depth 33 km, 14:03 Local (1978-03-23 04:03 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (443 km NE, Japan) — 44.496, 149.472

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