M 6.1 earthquake: South Pacific Ocean (Tonga) — April 5, 1971

M 6.1 earthquake: South Pacific Ocean (Tonga) — April 5, 1971. Epicenter 454 km W of Nuku'alofa, depth 592 km, 23:06 Local (1971-04-06 11:06 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (454 km W, Tonga) — -22.171, -179.472

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