M 4.6 earthquake: South Pacific Ocean (Tonga) — June 23, 1978

M 4.6 earthquake: South Pacific Ocean (Tonga) — June 23, 1978. Epicenter 319 km W of Nuku'alofa, depth 571 km, 18:22 Local (1978-06-24 06:22 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (319 km W, Tonga) — -20.535, -178.225

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