M 5.0 earthquake: South Pacific Ocean (Tonga) — October 20, 1973

M 5.0 earthquake: South Pacific Ocean (Tonga) — October 20, 1973. Epicenter 470 km W of Nuku'alofa, depth 607 km, 23:21 Local (1973-10-21 11:21 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (470 km W, Tonga) — -22.151, -179.64

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