M 4.6 earthquake: South Pacific Ocean (Tonga) — December 15, 1975

M 4.6 earthquake: South Pacific Ocean (Tonga) — December 15, 1975. Epicenter 474 km SW of Nuku'alofa, depth 102 km, 07:00 Local (1975-12-15 19:00 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (474 km SW, Tonga) — -24.831, -177.535

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