M 5.0 earthquake: South Pacific Ocean (Tonga) — September 20, 1983

M 5.0 earthquake: South Pacific Ocean (Tonga) — September 20, 1983. Epicenter 574 km SW of Nuku'alofa, depth 563 km, 06:41 Local (1983-09-19 18:41 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (574 km SW, Tonga) — -23.752, 179.964

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