M 4.6 earthquake: South Pacific Ocean (Tonga) — January 29, 1981

M 4.6 earthquake: South Pacific Ocean (Tonga) — January 29, 1981. Epicenter 357 km NW of Nuku'alofa, depth 632 km, 23:40 Local (1981-01-30 11:40 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (357 km NW, Tonga) — -18.917, -177.686