Tallest Mountain in the world Underwater The world’s tallest mountain is Mauna Kea in Hawaii, which rises 10,210 meters (33,500 feet) above sea level, of which more than 6,000 meters (nearly 20,000 feet) is submerged in the Pacific Ocean. Mount Everest is the tallest point on Earth when measured from sea level, but Mauna Kea, a dormant volcano, is the tallest if measured from its base, which is more than 20,000 feet below the sea surface, to its summit.
Combined Height: More than 33,500-ft (over 10,210-m) from the ocean base
Elevation: 4,207 m (13,802 ft)
Submerged Height: Approximately 6,000 meters.
Comparing the height of the mountain — at 8,848 meters (29,029 feet) Mount Everest is the tallest mountain in the world when measured from base to peak but this is around 1,602 meters (5,250 feet) taller.
Other exceptionally high places underwater, such as the Mariana Trench — which is a trench rather than a mount — do come to mind, however.
Mauna Kea, a dormant volcano on Hawaii island, the tallest mountain in the world from “base to peak.”
Although Mount Everest is the highest point on Earth above sea level, the Hawaiian volcano Mauna Kea is actually taller, because the majority of it is seafloor material that’s underwater.
Mauna Kea: The Underwater Giant
Total Height: ~10,210 m (33,500 ft)
Height Above Sea Level: 4,207 m (13,803 ft)
Depths In Deepest Water: ~6000 m / 19,700 Filtere domineers
Draining the Pacific Ocean, Mauna Kea would be almost 4,460 feet (1,360 meters) taller than Everest.
F&Q: Underwater Mountains
Q1: Is Mauna Kea the only mountain whose height is measured like this?
No, its neighboring Mauna Loa is too. With a volume of 75,000 km3 (18,000 cu mi), it is the largest volcano on Earth, when measured from its base, lying about 9,170 meters (30,085 ft) below the ocean floor.
Q2: What is a “Seamount”?
Seamount: an underwater mountain that is formed by volcanic activity and does not reach above the surface of the water. If a seamount grows sufficiently high to emerge above the water, this seamount is then considered an island (the Hawaiian Islands are examples).
Q3: How many mountains are underwater?
There are also an estimated 100,000 (or more) non-submerged seamounts of at least one kilometer in height around the global ocean floor (again, mostly unmapped and unexplored)
Q4: Is that tallest underground mountain of the solar system also, underwater?
No. Olympus Mons: The tallest mountain in the solar system Not only is it a shield volcano (the same shape as Mauna Kea), but it also looms a breathtaking 21.9 km (13.6 miles) tall; almost two Mauna Kea heights stacked on each other!
