BackgroundDuring an eruption in 1907 from an unnamed submarine volcano pyroclastic material was ejected to 100 m above the sea surface, and pumice rafts were produced. The eruption was approximately located on Admiralty Chart 2421 at a point 48 km SW of Tongatapu Island, along the Tofua volcanic arc. Tongatapu is located at the southern end of a chain of coral islands paralleling the Tofua volcanic arc on its eastern side. The reported location of the 1907 eruption corresponds to sloping terrain at 1800 m depth on a 1982 bathymetric map, but a seamount of about 500 m depth is located about 10 km to the NE. A second eruption from this area was reported in late 1932.
Smithsonian / GVP volcano information
See also: Sentinel hub | Landsat 8