M 4.6 earthquake: South Pacific Ocean (Tonga) — May 22, 1990

M 4.6 earthquake: South Pacific Ocean (Tonga) — May 22, 1990. Epicenter 371 km W of Nuku'alofa, depth 628 km, 20:53 Local (1990-05-22 08:53 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (371 km W, Tonga) — -21.054, -178.796

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