The launch of a new GVP website is scheduled for Monday, May 20, 2013.
|Subregion Name:||Tonga Islands|
|Volcano Type:||Submarine volcano|
|Last Known Eruption:||1995|
|Summit Elevation:||43 m||141 feet|
|Metis Shoal, a submarine volcano midway between the islands of Kao and Late, 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 was 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 first 20th-century eruptions in 1967 and 1979 were soon eroded beneath the sea 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.|