M 5.4 earthquake: South Pacific Ocean (Tonga) — May 10, 1987

M 5.4 earthquake: South Pacific Ocean (Tonga) — May 10, 1987. Epicenter 334 km W of Nuku'alofa, depth 567 km, 14:37 Local (1987-05-11 02:37 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (334 km W, Tonga) — -20.5, -178.362

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