M 5.4 Earthquake: South Pacific Ocean (Tonga) — July 20, 1979

M 5.4 Earthquake: South Pacific Ocean (Tonga) — July 20, 1979. Epicenter 544 km SW of Nuku'alofa, depth 530 km, 10:44 Local (1979-07-20 22:44 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (544 km SW, Tonga) — -23.346, -179.941

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