M 4.6 earthquake: South Pacific Ocean (Tonga) — April 13, 1976

M 4.6 earthquake: South Pacific Ocean (Tonga) — April 13, 1976. Epicenter 457 km W of Nuku'alofa, depth 576 km, 20:00 Local (1976-04-14 08:00 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (457 km W, Tonga) — -22.208, -179.489

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