Pacific Ocean width at about 5°N latitude, where it stretches approximately from Indonesia to the coast of Colombia—halfway around the world, and more than five times the diameter of the Moon. The lowest known point on Earth—the Mariana Trench—lies below sea level. Its average depth is , putting the total water volume at roughly . Due to the effects of plate tectonics, the Pacific Ocean is currently shrinking by roughly per year on three sides, roughly averaging a year. By contrast, the Atlantic Ocean is increasing in size. Along the Pacific Ocean's irregular western margins lie many seas, the largest of which
Libraries in the Philippines Libraries in the Philippines Libraries in the Philippines are academic libraries that can be found in the Philippines. Among such libraries are the National Library of the Philippines which is located in Manila, the university libraries of the University of the Philippines, the Central Philippine University, the Silliman University, the University of Santo Tomas, the University of the East, the Polytechnic University of the Philippines, Ateneo de Manila University, and the University of San Carlos. Research institutes such as the International Rice Research Institute located in Los Baños, Laguna houses a library. Some museums in the Philippines such as the