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New Zealand American Submarine Ring of Fire 2007

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: December 19, 2025 | Last Modified: 2007-01-01T00:00:00.000+00:00
The New Zealand American Ring of Fire 2007 expedition has been an outstanding success for all partners. The automous benthic explorer (ABE) team leader, Dana Yoerger, showed us the final map of the caldera (depressions) of Brothers Volcano. Flying into the volcano, you pass over the two cones: the large smooth-sided cone with its small crater that is the site of most of the recent volcanic activity, and the smaller cone that is partially eroded but still has intense hydrothermal activity at its summit. As you approach the wall of the caldera, the rugged topography (surface features) created by the degradation of the rocks from older eruptions is apparent. The comprehensive, co-located topographic, magnetic, and water-column mapping of Brothers Volcano is a new tool for exploring this "type" submarine volcano, and we are seeing it in greater detail than ever before.

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