M 5.1 earthquake: South Pacific Ocean (Tonga) — December 18, 1977

M 5.1 earthquake: South Pacific Ocean (Tonga) — December 18, 1977. Epicenter 370 km W of Nuku'alofa, depth 602 km, 04:03 Local (1977-12-17 16:03 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

South Pacific Ocean (370 km W, Tonga) — -21.048, -178.785

EarthquakeLive.org