M 4.9 earthquake: South Pacific Ocean (Tonga) — April 12, 1990

M 4.9 earthquake: South Pacific Ocean (Tonga) — April 12, 1990. Epicenter 318 km W of Nuku'alofa, depth 417 km, 18:05 Local (1990-04-13 06:05 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (318 km W, Tonga) — -20.163, -178.095

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