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) forces the two companies to negotiate an impact benefit agreement with the nine First Nations that would "include certain assurances, including guarantees that a certain number of jobs will go to First Nations workers". The three First Nations most profoundly impacted by the two projects are Marten Falls First Nation, Webequie First Nation and Neskantaga First Nation. Others on the edge of the Ring of Fire include Constance Lake First Nation (Chief Roger Wesley), Nibinamik First Nation, Aroland First Nation, Long Lake 58 First Nation, Ginoogaming First Nation, Eabametoong First Nation, Mishkeegogamang First Nation, and Constance Lake First Nation. In