M 5.0 earthquake: South Pacific Ocean (Tonga) — January 17, 1991

M 5.0 earthquake: South Pacific Ocean (Tonga) — January 17, 1991. Epicenter 340 km W of Nuku'alofa, depth 589 km, 22:00 Local (1991-01-18 10:00 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (340 km W, Tonga) — -21.11, -178.494

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