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 (1991 film) Ring of Fire (1991 film) Ring of Fire is a 1991 documentary film in IMAX format. It looks at some of the varieties of volcanism and earthquake activity in the Ring of Fire, around the Pacific Rim. The film runs 40 minutes. The film was jointly presented by the Fort Worth Museum of Science and History in Fort Worth, Texas, the Science Museum of Minnesota in Saint Paul, Minnesota, and the Reuben H. Fleet Space Theater and Science Center in San Diego, California. The film has eight main segments, corresponding to chapters in the DVD release: 1. "Ring of Fire":