M 5.7 earthquake: South Pacific Ocean (Tonga) — May 1, 1983

M 5.7 earthquake: South Pacific Ocean (Tonga) — May 1, 1983. Epicenter 341 km W of Nuku'alofa, depth 596 km, 21:58 Local (1983-05-02 09:58 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (341 km W, Tonga) — -20.733, -178.475

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