M 4.6 earthquake: South Pacific Ocean (Tonga) — January 22, 1987

M 4.6 earthquake: South Pacific Ocean (Tonga) — January 22, 1987. Epicenter 259 km W of Nuku'alofa, depth 515 km, 17:11 Local (1987-01-22 04:11 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (259 km W, Tonga) — -20.472, -177.612

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