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

M 4.6 earthquake: North Pacific Ocean (Japan) — March 23, 1978. Epicenter 396 km E of Kushiro, depth 33 km, 13:48 Local (1978-03-23 03:48 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (396 km E, Japan) — 44.047, 149.057

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