M 4.9 earthquake: South Pacific Ocean (Tonga) — April 15, 1979

M 4.9 earthquake: South Pacific Ocean (Tonga) — April 15, 1979. Epicenter 375 km W of Nuku'alofa, depth 648 km, 16:36 Local (1979-04-15 04:36 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (375 km W, Tonga) — -20.826, -178.815

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