M 5.4 earthquake: South Pacific Ocean (Tonga) — December 31, 1989

M 5.4 earthquake: South Pacific Ocean (Tonga) — December 31, 1989. Epicenter 434 km W of Nuku'alofa, depth 600 km, 19:49 Local (1990-01-01 07:49 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (434 km W, Tonga) — -21.772, -179.361

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