Why aren’t there mountains that are 10 or 15 miles high on Earth?

Question

Mt Everest is just under 5.5miles high. Olympus Mons on Mars is 16 miles high. Why aren’t there much larger mountains on Earth? What’s the highest a mountain can go on Earth?

In: 4987

Answer 1

Mauna kea is about a mile taller than everest but starts on sea floor. Just fun fact, some pretty tall mountains depending on where you consider “start”