13,803 ft above sea level
Mauna Kea on the Big Island of Hawaii is an example of a shield volcano expressed above sea level.
Tamu Massif erupted for a few million years during the early Cretaceous period. It has been inactive since then.
Tamu Massif is is 400 miles wide and 2.5 miles high and considered by some geoscientists to be the largest known volcano on Earth. By comparison, Tamu Massif is 25% smaller by volume than Mars' Olympus Mons volcano.
"A human being is a part of the whole called by us universe, a part limited in time and space. He experiences himself, his thoughts and feeling as something separated from the rest, a kind of optical delusion of his consciousness. This delusion is a kind of prison for us, restricting us to our personal desires and to affection for a few persons nearest to us. Our task must be to free ourselves from this prison by widening our circle of compassion to embrace all living creatures and the whole of nature in its beauty." ― Albert Einstein
- An immense shield volcano within the Shatsky Rise oceanic plateau, northwest Pacific Ocean by William W. Sager, Jinchang Zhang, Jun Korenaga, Takashi Sano, Anthony A. P. Koppers, Mike Widdowson & John J. Mahoney, Nature Geoscience, September 5, 2013.
- Mars’ Olympus Mons may have company in biggest volcanoes club—on Earth, by Scott K. Johnson, Arstechnica, September 6, 2013.
- Largest Volcano on Earth Lurks Beneath Pacific Ocean, Yahoo News, September 5, 2013.