M 4.5 earthquake: South Pacific Ocean (Tonga) — February 12, 1973

M 4.5 earthquake: South Pacific Ocean (Tonga) — February 12, 1973. Epicenter 289 km W of Nuku'alofa, depth 571 km, 03:51 Local (1973-02-11 14:51 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (289 km W, Tonga) — -21.053, -178.005

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