M 4.5 earthquake: North Pacific Ocean (Japan) — April 4, 1975

M 4.5 earthquake: North Pacific Ocean (Japan) — April 4, 1975. Epicenter 366 km E of Kushiro, depth 33 km, 02:15 Local (1975-04-03 16:15 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (366 km E, Japan) — 43.626, 148.806

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