Mauna Kea

Mauna Kea (Hawaiian: [ˈmɐwnə ˈkɛjə]; abbreviation for Mauna a Wākea) is a dormant volcano on the island of Hawaiʻi. Its peak is 4,207.3 m above sea level, making it the highest point in Hawaiʻi and the 2nd-highest peak of an island on Earth. Mauna Kea has a wet prominence 15th in the world among mountains; its dry prominence of 9,330 m is 2nd in the world after Mount Everest. This dry prominence is greater than Mount Everest's height above sea level, and some authorities have labeled Mauna Kea the tallest mountain in the world, as measured from its underwater base.