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A study in 2016 found that Tamu Massif likely encompassed the entire Shatsky Rise, meaning that Tamu Massif has an area of about 533,000 square kilometres (206,000 sq mi), surpassing Olympus Mons in surface area, though it has not yet been determined which of the two volcanoes has a greater mass. [9]
Tamu Massif is likely the largest volcano yet discovered on Earth. [4] In 2016, a study found that Tamu Massif covered the entire Shatsky Rise, meaning that the volcano had a surface area of 533,000 square kilometres (206,000 sq mi), surpassing Olympus Mons in terms of surface area. [5]
The solar system's tallest mountain is possibly the Olympus Mons on Mars with an altitude of 21.9 to 26 km. The central peak of Rheasilvia on the asteroid Vesta is also a candidate to be the tallest, with an estimated at up to between 20 and 25 km from peak to base.
Sif Mons is a broad shield volcano with an approximate radius of ~1,000 km and a measured peak elevation of ~2.2 km. Sif Mons's slopes are very shallow, with a maximum slope on its southwestern flank of just 0.2° and a minimum slope on its northern flank of less than 0.04°.
The new report says "We suggest that the Tamu Massif could be the largest single volcano on Earth and that it is comparable in size to the largest volcano in the Solar System, Olympus Mons on Mars." I have added emphasis in two places. These people do not have absolute confirmation that Tamu Massif is a single volcano.
The intro describes Olympus Mons as second to Earth's Tamu Massif and Vesta's Rheasilvia in size and height, but both of those articles give figures that they are smaller than Olympus Mons. Craig Butz 17:45, 15 September 2019 (UTC) Also, is it right to compare a mountain with the side of an impact crater? I don't think that's right.
Olympus Mons (/ ə ˌ l ɪ m p ə s ˈ m ɒ n z, oʊ-/; [4] Latin for 'Mount Olympus') is a large shield volcano on Mars.It is over 21.9 km (13.6 mi; 72,000 ft) high as measured by the Mars Orbiter Laser Altimeter (MOLA), [5] about 2.5 times the elevation of Mount Everest above sea level.
English: Schematic view of Olympus Mons, Mars : Comparison of Olympus Mons with the highest mountains on Earth. In front of the central part of Olympus Mons are shown the largest terrestrial volcanic mountain, the island of Hawaii in the Pacific with its undersea pedestal, and the Mount Everest massif of the Himalayas.