M 4.6 earthquake: South Pacific Ocean (Tonga) — January 3, 1991

M 4.6 earthquake: South Pacific Ocean (Tonga) — January 3, 1991. Epicenter 342 km W of Nuku'alofa, depth 539 km, 23:14 Local (1991-01-04 11:14 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (342 km W, Tonga) — -21.013, -178.513

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