M 4.6 earthquake: South Pacific Ocean (Tonga) — September 18, 1985

M 4.6 earthquake: South Pacific Ocean (Tonga) — September 18, 1985. Epicenter 258 km W of Nuku'alofa, depth 435 km, 16:50 Local (1985-09-18 03:50 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (258 km W, Tonga) — -21.268, -177.704

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