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
Sports in the Philippines in the country. Other rival or smaller leagues in the country are organized. College basketball leagues and competitions such as the Philippine Collegiate Championship. Basketball matches of the University Athletic Association of the Philippines and the National Collegiate Athletic Association also receives attention. The country also has a women's basketball team which has competed at the FIBA Asia Women's Championship, as well as men youth team's and 3x3 national teams. The Samahang Basketbol ng Pilipinas (Basketball Federation of the Philippines) is the national sport association of basketball in the Philippines. Rugby league was first played in the Philippines in 2012.