M 4.7 earthquake: South Pacific Ocean (Tonga) — March 28, 1973

M 4.7 earthquake: South Pacific Ocean (Tonga) — March 28, 1973. Epicenter 536 km SW of Nuku'alofa, depth 535 km, 23:24 Local (1973-03-29 11:24 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (536 km SW, Tonga) — -23.551, -179.73

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