M 4.9 earthquake: South Pacific Ocean (Tonga) — September 28, 1987

M 4.9 earthquake: South Pacific Ocean (Tonga) — September 28, 1987. Epicenter 351 km W of Nuku'alofa, depth 543 km, 20:36 Local (1987-09-28 08:36 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (351 km W, Tonga) — -20.839, -178.582

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