M 4.5 earthquake: South Pacific Ocean (Tonga) — August 21, 1998

M 4.5 earthquake: South Pacific Ocean (Tonga) — August 21, 1998. Epicenter 380 km W of Nuku'alofa, depth 550 km, 23:04 Local (1998-08-21 11:04 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (380 km W, Tonga) — -21.019, -178.879

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