M 4.5 earthquake: South Pacific Ocean (Tonga) — May 23, 1981

M 4.5 earthquake: South Pacific Ocean (Tonga) — May 23, 1981. Epicenter 324 km W of Nuku'alofa, depth 548 km, 01:43 Local (1981-05-23 13:43 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (324 km W, Tonga) — -20.311, -178.208

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