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
Back Here on Earth however, and Back Here on Earth is still a very solid set, certainly worth acquiring if you like his other LPs for this label." All compositions by Gordon Lightfoot. Back Here on Earth Back Here On Earth is Canadian singer Gordon Lightfoot's fourth studio album, released in 1968 on the United Artists label. Apart from his eponymous debut album, it is Lightfoot's only studio album not to derive its title from a song on the album. "Back Here on Earth" was Lightfoot's last studio recording on the United Artists label which he left after releasing the live album "Sunday Concert"