M 4.7 earthquake: South Pacific Ocean (Tonga) — June 20, 1979

M 4.7 earthquake: South Pacific Ocean (Tonga) — June 20, 1979. Epicenter 317 km W of Nuku'alofa, depth 520 km, 05:05 Local (1979-06-20 17:05 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (317 km W, Tonga) — -21.091, -178.278

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