M 5.4 earthquake: South Pacific Ocean (Tonga) — October 12, 1977

M 5.4 earthquake: South Pacific Ocean (Tonga) — October 12, 1977. Epicenter 577 km SW of Nuku'alofa, depth 548 km, 00:14 Local (1977-10-11 12:14 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (577 km SW, Tonga) — -23.569, 179.82

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