M 4.6 earthquake: South Pacific Ocean (Tonga) — May 31, 1981

M 4.6 earthquake: South Pacific Ocean (Tonga) — May 31, 1981. Epicenter 478 km SW of Nuku'alofa, depth 462 km, 10:26 Local (1981-05-31 22:26 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (478 km SW, Tonga) — -23.147, -179.325

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