Macauley Island Volcano, New Zealand

The submersible vessel Pisces V surfaces in the foreground after a dive in front of Macauley Island during a 2005 New Zealand/American NOAA Ocean Explorer research expedition to the Kermadec arc.

This view from the NW shows a prominent white band in the cliff-face that is made of dacitic pyroclastic-flow deposits.

The 3-km-wide Macauley Island is a remnant of the rim of a large submarine caldera centered 8 km to the NW and has a low, gently sloping surface truncated by steep cliffs.

PHOTO SOURCE: Image courtesy of NOAA, 2005, courtesy of the Global Volcanism Program, Smithsonian National Museum of Natural History, used with permission.

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