M 4.5 earthquake: South Pacific Ocean (Tonga) — August 9, 1991

M 4.5 earthquake: South Pacific Ocean (Tonga) — August 9, 1991. Epicenter 428 km W of Nuku'alofa, depth 390 km, 00:16 Local (1991-08-09 12:16 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (428 km W, Tonga) — -21.499, -179.339

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