East Pacific Rise

American  

[eest puh-sif-ik rahyz] / ˈist pəˈsɪf ɪk ˈraɪz /

noun

1. a long north-south elevation of the seafloor in the eastern Pacific Ocean extending southward from southwestern Mexico to the Southern Ocean, separating the Pacific Plate from the North American, Rivera, Cocos, Nazca, and Antarctic Plates. EPR

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Etymology

Origin of East Pacific Rise

First recorded in 1960–65