Story: Sea floor geology

Havre Trough

Havre Trough

The deep, rough seabed of the Havre Trough lies between the Colville and Kermadec ridges. This area, where the earth’s crust is being stretched apart, continues onshore at the Bay of Plenty into the Taupō Volcanic Zone. The Havre Trough is opening up, moving the Kermadec Ridge with its many active conical volcanoes, eastwards away from the Colville Ridge with its extinct ones.

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Source: NIWA – National Institute of Water and Atmospheric Research

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How to cite this page:

Keith Lewis, Scott D. Nodder and Lionel Carter, 'Sea floor geology - Abysses', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/en/map/5608/havre-trough (accessed 20 July 2019)

Story by Keith Lewis, Scott D. Nodder and Lionel Carter, published 12 Jun 2006