M 5.1 earthquake: South Pacific Ocean (Tonga) — August 26, 1975
M 5.1 earthquake: South Pacific Ocean (Tonga) — August 26, 1975. Epicenter 554 km SW of Nuku'alofa, depth 540 km, 14:35 Local (1975-08-27 02:35 UTC). Readings from every reporting agency, affected towns, aftershock sequence.
South Pacific Ocean (554 km SW, Tonga) — -23.783, -179.788
