Havre Seamount is an active submarine volcano in the Kermandec Island arc about 75 SW of Curtis island. Little is known about the volcano. Its first document eruption probably started around 18 July 2012 and was discovered in August 2012 after a large pumice raft was discovered i... [più]
Monowai seamount (also known as Orion seamount) is one of the most active volcanoes of the Kermancec Arc. It has a large submarine caldera and is located halfway between Tonga and the Kermadec Islands. Eruptions at Monowai occur every few years. [più]
Map view shows Monowai submarine volcano at the lower left, with subsidiary cones on its northern flank. A large submarine caldera lies at the upper right lies to the NE. The contour interval is 100 meters, and the resolution of the bathymetry data is 25 meters. The proprietary bathymetry data were obtained by scientists of the New Zealand National Institute of Water and Atmospheric Research (NIWA) during a 2005 New Zealand/American NOAA Ocean Explorer research expedition to the Kermadec-Tonga arc. Image courtesy of Ian Wright, 2005 (NIWA; http://oceanexplorer.noaa.gov/explorations/05fire)
Raoul Island volcano is the northernmost, largest and best known of the Kermandec islands NE of New Zealand.
The anvil shaped 10 x 6 km wide island is the top of a large stratovolcano breaching the sea surface. At its submarine base, the volcano measures 35 x 20 km. The vo... [più]