M 5.1 earthquake: South Pacific Ocean (Tonga) — January 4, 1987

M 5.1 earthquake: South Pacific Ocean (Tonga) — January 4, 1987. Epicenter 360 km W of Nuku'alofa, depth 560 km, 12:32 Local (1987-01-04 00:32 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (360 km W, Tonga) — -21.035, -178.684

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