M 5.3 earthquake: South Pacific Ocean (Tonga) — July 18, 1977

M 5.3 earthquake: South Pacific Ocean (Tonga) — July 18, 1977. Epicenter 469 km W of Nuku'alofa, depth 573 km, 09:26 Local (1977-07-18 21:26 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (469 km W, Tonga) — -22.194, -179.614

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