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How big are the Hawaiian volcanoes?

The Hawaiian shield volcanoes are the largest mountains on Earth.

Mauna Kea Volcano rises 13,796 feet (4,205 meters) above sea level but extends about 19,700 feet (6,000 meters) below sea level to meet the deep ocean floor. Its total height is nearly 33,500 feet (10,211 meters), considerably higher than the height of the tallest mountain on land, Mount Everest (Chomolungma in Tibetan) in the Himalayas, which is 29,029 feet (8,848 meters) above sea level.

Mauna Loa Volcano stands not quite as high as Mauna Kea but is much larger in volume.

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