Map of the Earth indicating boundaries, mostly the midocean ridges, where plates separate (green), and boundaries where plates converge (heavy red, blue, and black lines). The Kermadec-Tonga Arc is one of the longest interoceanic arcs on the planet. Submarine Ring of Fire cruises in 2003 and 2004 visited the Mariana Arc.
Related Links
New Zealand American Submarine Ring of Fire 2005
