M 4.9 earthquake: North Pacific Ocean (Japan) — May 1, 1973

M 4.9 earthquake: North Pacific Ocean (Japan) — May 1, 1973. Epicenter 344 km E of Kushiro, depth 57 km, 10:52 Local (1973-05-01 00:52 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (344 km E, Japan) — 43.944, 148.428

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