M 4.7 earthquake: South Pacific Ocean (Tonga) — January 17, 1987

M 4.7 earthquake: South Pacific Ocean (Tonga) — January 17, 1987. Epicenter 437 km W of Nuku'alofa, depth 622 km, 01:24 Local (1987-01-17 13:24 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (437 km W, Tonga) — -21.547, -179.418

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