M 4.6 earthquake: South Pacific Ocean (Tonga) — March 21, 2000

M 4.6 earthquake: South Pacific Ocean (Tonga) — March 21, 2000. Epicenter 315 km W of Nuku'alofa, depth 548 km, 01:11 Local (2000-03-21 13:11 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (315 km W, Tonga) — -20.515, -178.175

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