M 4.6 earthquake: South Pacific Ocean (Tonga) — September 16, 1988

M 4.6 earthquake: South Pacific Ocean (Tonga) — September 16, 1988. Epicenter 274 km W of Nuku'alofa, depth 492 km, 15:45 Local (1988-09-16 02:45 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (274 km W, Tonga) — -20.327, -177.713

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