M 4.6 earthquake: South Pacific Ocean (Tonga) — December 13, 1987

M 4.6 earthquake: South Pacific Ocean (Tonga) — December 13, 1987. Epicenter 347 km W of Nuku'alofa, depth 560 km, 22:44 Local (1987-12-13 10:44 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (347 km W, Tonga) — -20.759, -178.538

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