M 5.4 earthquake: South Pacific Ocean (Tonga) — September 3, 1973

M 5.4 earthquake: South Pacific Ocean (Tonga) — September 3, 1973. Epicenter 389 km W of Nuku'alofa, depth 639 km, 15:23 Local (1973-09-03 03:23 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (389 km W, Tonga) — -20.891, -178.959

EarthquakeLive.org