M 4.6 earthquake: South Pacific Ocean (Tonga) — May 13, 1974

M 4.6 earthquake: South Pacific Ocean (Tonga) — May 13, 1974. Epicenter 321 km W of Nuku'alofa, depth 603 km, 00:35 Local (1974-05-13 12:35 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (321 km W, Tonga) — -20.443, -178.219

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