M 5.8 earthquake: South Pacific Ocean (Tonga) — September 30, 1988

M 5.8 earthquake: South Pacific Ocean (Tonga) — September 30, 1988. Epicenter 308 km NW of Nuku'alofa, depth 552 km, 09:45 Local (1988-09-30 21:45 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (308 km NW, Tonga) — -19.374, -177.492

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