M 5.5 earthquake: South Pacific Ocean (Tonga) — January 30, 1976

M 5.5 earthquake: South Pacific Ocean (Tonga) — January 30, 1976. Epicenter 423 km W of Nuku'alofa, depth 628 km, 20:22 Local (1976-01-31 08:22 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (423 km W, Tonga) — -21.468, -179.292

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