M 4.8 earthquake: South Pacific Ocean (Tonga) — August 17, 1991

M 4.8 earthquake: South Pacific Ocean (Tonga) — August 17, 1991. Epicenter 367 km W of Nuku'alofa, depth 559 km, 07:29 Local (1991-08-16 19:29 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (367 km W, Tonga) — -20.823, -178.739

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