M 5.6 Earthquake: South Pacific Ocean (Tonga) — March 23, 1999

M 5.6 Earthquake: South Pacific Ocean (Tonga) — March 23, 1999. Epicenter 365 km W of Nuku'alofa, depth 575 km, 23:23 Local (1999-03-23 11:23 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (365 km W, Tonga) — -20.912, -178.731

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