M 4.7 earthquake: South Pacific Ocean (Tonga) — February 11, 1973

M 4.7 earthquake: South Pacific Ocean (Tonga) — February 11, 1973. Epicenter 554 km SW of Nuku'alofa, depth 570 km, 10:33 Local (1973-02-10 22:33 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (554 km SW, Tonga) — -23.369, 179.967

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