M 5.4 earthquake: South Pacific Ocean (Tonga) — December 20, 1982

M 5.4 earthquake: South Pacific Ocean (Tonga) — December 20, 1982. Epicenter 275 km S of Nuku'alofa, depth 33 km, 23:15 Local (1982-12-20 10:15 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (275 km S, Tonga) — -23.592, -175.561

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