M 4.7 earthquake: South Pacific Ocean (Tonga) — April 28, 1987

M 4.7 earthquake: South Pacific Ocean (Tonga) — April 28, 1987. Epicenter 378 km SW of Nuku'alofa, depth 379 km, 09:51 Local (1987-04-28 21:51 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (378 km SW, Tonga) — -22.518, -178.571

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