Pacific Ocean Basins
An ocean basin is a large and deep depression that gradually slopes towards the seafloor, forming the shape of a basin. The Pacific basin is divided into East and West Basins. A large ridge called the East Pacific Rise that runs from the Gulf of California to the southernmost tip of South America is responsible for this division. The eastern Pacific Basin runs along the entire length of the Americas: from Alaska to Tierra del Fuego. The continental shelf associated with this long stretch of land is steep, and forms the eastern boundary of the East Pacific Basin.