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
Japanese in the Philippines Cave in South Cotabato confirmed the great pottery tradition of the Philippines. In terms of quantity and quality, these artifacts have no match in Southeast Asia for such an early time period. One interesting question is whether or not the Philippines ever developed an export industry for pottery. Generally it is known that the Thais had developed quite a flourishing industry, which is sometimes considered unique in Southeast Asia. However, it is well documented that the Philippines was in fact a major destination of pottery buyers from the islands of Japan at least. In the Tokiko it mentions that all