Ominously, the red triangles represent volcanoes 
that are thought to be linked by virtue of being along 
the same geological feature. The Kermadec Islands 
(about in the middle of the map) are made up of  the 
following volcanoes: Brimstone Island (never a 
promising name), Curtis Island, Giggenbach, 
Macauley Island, Raoul Island, Monowai Seamount 
and Volcano W, a terse and precise if not very 
imaginative name.  Raoul Island is the 
northernmost and largest of the Kermadec Islands.
Raoul is the summit of a large submerged massif 
about 35 km by 20 km. At the surface the island 
covers about 30 sq km in area (maximum 10 x 
6km). The 17th March 2006 eruption destroyed 
about 12 acres of bush, and emitted boulders, rocks 
and ash. Ashfall covered half the island. There were 
previous eruptions in 1964-65, 1872, 1870, 1845 and 
1814. Monowai Seamount is at 25.88 S, 177.18 E 
and has lots of activity, most of which is invisible.
      
      
      For comments on New Zealand proper and the islands south of South Island