M 5.5 earthquake: South Pacific Ocean (Tonga) — August 22, 1991

M 5.5 earthquake: South Pacific Ocean (Tonga) — August 22, 1991. Epicenter 557 km SW of Nuku'alofa, depth 535 km, 01:18 Local (1991-08-22 13:18 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (557 km SW, Tonga) — -23.834, -179.79

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