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

M 4.7 earthquake: South Pacific Ocean (Tonga) — June 28, 1973. Epicenter 582 km SW of Nuku'alofa, depth 539 km, 08:54 Local (1973-06-27 20:54 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (582 km SW, Tonga) — -23.743, 179.872

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