M 4.7 earthquake: South Pacific Ocean (Tonga) — December 22, 1987

M 4.7 earthquake: South Pacific Ocean (Tonga) — December 22, 1987. Epicenter 294 km W of Nuku'alofa, depth 452 km, 06:28 Local (1987-12-21 17:28 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (294 km W, Tonga) — -20.572, -177.983

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