M 5.4 earthquake: South Pacific Ocean (Tonga) — February 25, 1990

M 5.4 earthquake: South Pacific Ocean (Tonga) — February 25, 1990. Epicenter 300 km NW of Nuku'alofa, depth 572 km, 02:57 Local (1990-02-25 14:57 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (300 km NW, Tonga) — -20.011, -177.843

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