M 4.6 earthquake: North Pacific Ocean (Japan) — March 24, 1977

M 4.6 earthquake: North Pacific Ocean (Japan) — March 24, 1977. Epicenter 294 km E of Kushiro, depth 33 km, 02:53 Local (1977-03-23 17:53 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (294 km E, Japan) — 42.108, 147.762

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