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
USS Merapi (AF-38) Galveston Dry Dock Co., "Merapi" hastened through shakedown and departed Mobile, Alabama, 11 April, for the Pacific Ocean war zone. Specializing in refrigerated stores, she sailed via Pearl Harbor to Kerama Retto, Okinawa where in the midst of numerous air alerts she unloaded 14 to 19 June. Having retired to Pearl Harbor for more supplies she got underway again on 20 July and spent the final month of the war at Eniwetok Atoll disbursing cargo. In the postwar period "Merapi" provided logistic support for U.S. occupation forces, initially using Auckland, New Zealand, as her supply base. Spending much of 1946