Brothers Volcano

Brothers volcano

The Brothers Volcano is a Pacific Ocean submarine volcano in the Kermadec Arc, 340 kilometres north east of New Zealand's Whakaari/White Island. Within its oval outline, which measures 13 km by 8 km, it contains a 3 km wide caldera with walls 300-500 m high. A dacite dome rises 350 m from the caldera floor (which lies 1850 m below sea level), with a smaller dome just to its northeast. The caldera walls and the larger dome host numerous hydrothermal vents, which send plumes of hot water 750 m up through the water column. It is the most hydrothermally active volcano known in the Kermadec Arc.^[1]

A joint expedition by the United States, New Zealand and Germany mapped the volcano in detail in 2007.^[2]

See also

• List of volcanoes in New Zealand

References

1. "Brothers Volcano". GNS Science. 19 Dec 2009. Archived from the original on February 28, 2011. Retrieved 21 March 2010.
2. Gregory, Angela (17 August 2007). "Photo: Seabed volcano in all its glory". The New Zealand Herald. Retrieved 21 March 2010.

• de Ronde, C. E. J., Hannington, M. D., Stoffers, P., Wright, I. C., Ditchburn, R. G., Reyes, A. G., Baker, E. T., Massoth, G. J., Lupton, J. E., Walker, S. L., Greene, R. R., Soong, C. W. R., Ishibashi, J., Lebon, G. T., Bray, C. J., and Resing, J. A. (2005). Evolution of a Submarine Magmatic-Hydrothermal System: Brothers Volcano, Southern Kermadec Arc, New Zealand, Economic Geology, 100(6), 1097-1133. doi:10.2113/100.6.1097.
• "Brothers". Global Volcanism Program. Smithsonian Institution.

External links

• Topographic map of the Brothers volcano

Coordinates: 34°52′15″S 179°04′00″E / 34.8708°S 179.0667°E