Report on Lateiki (Tonga) — 17 April-23 April 2024
Smithsonian Institution / US Geological Survey
Weekly Volcanic Activity Report, 17 April-23 April 2024
Managing Editor: Sally Sennert.
Please cite this report as:
Global Volcanism Program, 2024. Report on Lateiki (Tonga) (Sennert, S, ed.). Weekly Volcanic Activity Report, 17 April-23 April 2024. Smithsonian Institution and US Geological Survey.
Lateiki
Tonga
19.18°S, 174.87°W; summit elev. 43 m
All times are local (unless otherwise noted)
Satellite data showed an area of yellowish-green discolored water that was about 5 km long in the N-S direction and about 3 km in the E-W direction, in the vicinity of the submarine Lateiki volcano on 21 April. A more diffuse plume of discolored water extended another ~12 km WNW before dissipating.
Geological Summary. Lateiki, previously known as Metis Shoal, is a submarine volcano midway between the islands of Kao and Late that has produced a series of ephemeral islands since the first confirmed activity in the mid-19th century. An island, perhaps not in eruption, was reported in 1781 and subsequently eroded away. During periods of inactivity following 20th-century eruptions, waves have been observed to break on rocky reefs or sandy banks with depths of 10 m or less. Dacitic tuff cones formed during the eruptions in 1967 and 1979 were soon eroded beneath the ocean surface. An eruption in 1995 produced an island with a diameter of 280 m and a height of 43 m following growth of a lava dome above the surface.
Source: Copernicus