Geology of the Pacific Ocean Guinea, and New Zealand lie outside the andesite line. Outside of the andesite line, volcanism is explosive; the Pacific Ring of Fire is the world's foremost belt of explosive volcanism. The Ring of Fire is named after the several hundred active volcanoes that sit above the various subduction zones. In 2009, the deepest undersea eruption ever recorded occurred at the West Mata submarine volcano, a mile beneath the ocean, close to the Tonga-Kermadec Trench, within the Ring of Fire; it was filmed by the US Jason robotic submersible which descended over . The Pacific Ocean is the only ocean which
Ring of Fire (Northern Ontario) briefing notes for Clement warned that the Matawa First Nation communities were among the "most socio-economically challenged in Ontario, impacting their ability to meaningfully participate in large complex projects". Most of the "working age population in the Matawa First Nation communities have not completed high school". Three of the nine local Matawa First Nations were "under financial intervention (co-management)". Matawa First Nations lack "exposure to a development of this magnitude combined with low educational attainment and other factors suggests that the communities do not currently have the capacity to address the various issues related to the Ring of Fire". The