M 4.6 earthquake: South Pacific Ocean (Tonga) — March 9, 1987

M 4.6 earthquake: South Pacific Ocean (Tonga) — March 9, 1987. Epicenter 560 km SW of Nuku'alofa, depth 521 km, 19:56 Local (1987-03-10 07:56 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (560 km SW, Tonga) — -23.59, -179.98

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