M 4.6 earthquake: South Pacific Ocean (Tonga) — October 28, 1981

M 4.6 earthquake: South Pacific Ocean (Tonga) — October 28, 1981. Epicenter 380 km NW of Nuku'alofa, depth 570 km, 05:41 Local (1981-10-28 17:41 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (380 km NW, Tonga) — -18.57, -177.622

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