M 4.9 earthquake: South Pacific Ocean (Tonga) — April 21, 1990

M 4.9 earthquake: South Pacific Ocean (Tonga) — April 21, 1990. Epicenter 256 km W of Nuku'alofa, depth 362 km, 07:25 Local (1990-04-20 18:25 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (256 km W, Tonga) — -20.341, -177.526

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