New Pacific island rises after underwater volcanic blast - Al Jazeera English
On September 14, Tonga Geological Services estimated the size of the island to be 4,000 square metres (43,055 square feet), with an elevation of 10.1 metres (33 feet) above sea level.However, by September 20 the agency said the island had grown substantially to 24,000 square metres (258,333 square feet).
Previously, Home Reef volcanos erupted in 1852, 1857, 1984 and 2006 – with the last two eruptions producing islands 50 to 70 metres (164-229 feet) high, NASA said.