M 5.4 earthquake: South Pacific Ocean (Tonga) — July 9, 1977

M 5.4 earthquake: South Pacific Ocean (Tonga) — July 9, 1977. Epicenter 426 km W of Nuku'alofa, depth 607 km, 17:11 Local (1977-07-10 05:11 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (426 km W, Tonga) — -21.917, -179.251

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