M 5.5 earthquake: South Pacific Ocean (Tonga) — October 20, 1984

M 5.5 earthquake: South Pacific Ocean (Tonga) — October 20, 1984. Epicenter 338 km W of Nuku'alofa, depth 575 km, 09:22 Local (1984-10-20 21:22 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (338 km W, Tonga) — -20.693, -178.439

EarthquakeLive.org