M 5.1 earthquake: South Pacific Ocean (Tonga) — October 21, 1978

M 5.1 earthquake: South Pacific Ocean (Tonga) — October 21, 1978. Epicenter 547 km SW of Nuku'alofa, depth 404 km, 05:37 Local (1978-10-21 17:37 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (547 km SW, Tonga) — -23.488, -179.891

EarthquakeLive.org