Mauna Kea
Explanation
Mountain heights are generally measured from mean sea level (altitude). However, when measuring the absolute height of a mountain from its base (often on the ocean floor) to its peak, certain volcanic islands exceed the height of continental mountains like Mount Everest.
Detailed Analysis:
- Mauna Kea: Located in Hawaii (Pacific Ocean), Mauna Kea is a dormant volcano. While its altitude is approximately 4,207 meters above sea level, its base rests on the ocean floor. When measured from its underwater base to its peak, its total height is approximately 10,210 meters. This makes it significantly taller than Mount Everest, which stands at 8,848 meters above sea level.
- Mauna Loa: Also located in Hawaii, Mauna Loa is the world's largest active volcano by volume. While massive, its absolute height is slightly less than that of Mauna Kea.
- Mariana Trench: This is the deepest oceanic trench on Earth, located in the western Pacific Ocean, not a mountain.
- Mt. Fujiyama: This is an active volcano and the highest peak in Japan (3,776 meters), but it is far shorter than Mount Everest.
Key Takeaway:
Mauna Kea is the tallest mountain on Earth when measured from base to peak, whereas Mount Everest is the highest mountain on Earth when measured from mean sea level.