M 4.6 earthquake: South Pacific Ocean (Tonga) — December 31, 1999

M 4.6 earthquake: South Pacific Ocean (Tonga) — December 31, 1999. Epicenter 546 km SW of Nuku'alofa, depth 538 km, 19:51 Local (2000-01-01 07:51 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (546 km SW, Tonga) — -23.319, -179.978

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