M 5.4 earthquake: South Pacific Ocean (Tonga) — December 20, 1991

M 5.4 earthquake: South Pacific Ocean (Tonga) — December 20, 1991. Epicenter 287 km N of Neiafu, depth 79 km, 15:03 Local (1991-12-20 02:03 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (287 km N, Tonga) — -16.095, -173.571

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