M 5.6 earthquake: South Pacific Ocean (Tonga) — September 15, 1988

M 5.6 earthquake: South Pacific Ocean (Tonga) — September 15, 1988. Epicenter 333 km W of Nuku'alofa, depth 551 km, 14:16 Local (1988-09-16 02:16 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (333 km W, Tonga) — -20.515, -178.355

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