M 4.7 earthquake: North Pacific Ocean (Japan) — April 6, 1973

M 4.7 earthquake: North Pacific Ocean (Japan) — April 6, 1973. Epicenter 278 km E of Kushiro, depth 33 km, 07:35 Local (1973-04-05 22:35 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (278 km E, Japan) — 43.657, 147.676

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