M 4.7 earthquake: South Pacific Ocean (Tonga) — October 31, 1983

M 4.7 earthquake: South Pacific Ocean (Tonga) — October 31, 1983. Epicenter 251 km W of Nuku'alofa, depth 527 km, 13:05 Local (1983-10-31 00:05 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (251 km W, Tonga) — -20.88, -177.622

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