M 5.4 earthquake: South Pacific Ocean (Tonga) — September 25, 1977

M 5.4 earthquake: South Pacific Ocean (Tonga) — September 25, 1977. Epicenter 444 km W of Nuku'alofa, depth 606 km, 04:15 Local (1977-09-25 16:15 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (444 km W, Tonga) — -21.825, -179.451

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