M 5.1 earthquake: South Pacific Ocean (Tonga) — January 20, 1983

M 5.1 earthquake: South Pacific Ocean (Tonga) — January 20, 1983. Epicenter 315 km S of Nuku'alofa, depth 60 km, 18:58 Local (1983-01-21 06:58 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (315 km S, Tonga) — -23.918, -175.814

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