M 4.5 earthquake: South Pacific Ocean (Tonga) — February 16, 1981

M 4.5 earthquake: South Pacific Ocean (Tonga) — February 16, 1981. Epicenter 310 km SW of Nuku'alofa, depth 459 km, 23:51 Local (1981-02-17 11:51 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (310 km SW, Tonga) — -23.388, -176.998

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