M 4.5 earthquake: South Pacific Ocean (Tonga) — August 18, 1999

M 4.5 earthquake: South Pacific Ocean (Tonga) — August 18, 1999. Epicenter 345 km W of Nuku'alofa, depth 472 km, 12:45 Local (1999-08-19 00:45 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (345 km W, Tonga) — -21.862, -178.463

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