This giant shield volcano is almost entirely constructed of basalt lava flows. Assuming it doesnât gradually collapse because of itâs weight then itâs going to form a barrier to aircraft since it is twice as high as the average cruising height of planes - 70,000 ft. Olympus Mons, volcano on the planet Mars, the highest point on the planet and the largest known volcano in the solar system.Centred at 19° N, 133° W, Olympus Mons consists of a central edifice 22 km (14 miles) high and 700 km (435 miles) across. Are these pictures showing an eruption of Arsia Mons, a Mars volcano thought to be inactive? Iceland began to form about 16 million years ago. Despite the belief that it is one of Marsâ more recent volcanoes, Olympus Mons is the largest discovered volcano in the known solar â¦ Located in the Tharsis Montes region of Mars, near the equator in the planetâs western hemisphere, Olympus Mons (Latin for âMount Olympusâ) is a volcano that stretches 374 miles across and rises 16 miles high â about three times the height of Everest.. Olympus Monsâ approximately 120,000 square miles place â¦ The last eruption of Olympus Mons is estimated to be 25 million years ago. read more. 0 0. The massive Martian mountain towers high above the surrounding plains of the red planet, and may be biding its time until the next eruption. The tallest mountain on any of the Solar Systemâs planets is Olympus Mons, a giant extinct volcano on Mars that is some 14 miles (or 21.9 kilometers) high. On the geologic scale, that's pretty much yesterday. Olympus Mons is an extremely large volcano located on the surface of Mars, and it is a shield volcano created by lava piling. Olympus Mons is the largest volcano in the solar system. For comparison, Yellowstone last erupted 2.1 million years ago. Source: answers.com. Olympus Mons is a shield volcano with very broad gradual slopes created by lava flows. Olympus Mons is a shield volcano, which means it oozes huge amounts of lava, rather than simply blowing its top in a catastrophic eruption. This strange white trail coming out of the summit of Arsia Mons was captured by the Mars Express orbiter of ESA on October 18, 2018 This white plume is not about ongoing volcanic â¦ The Columbia flood basalts ceased about 6 million years ago. Mount Olympus (or Olympus Mons, the official name in Latin) on planet Mars is the largest known volcano in the Solar System. For this reason, Olympus Mons was able to sit over its hotspot for its entire history as it grew larger and larger. Is a volcano currently erupting on Mars? Thatâs about two and a half times the height of Mount Everest. Olympus Mons is extinct, so it will not erupt ever again. Scientists aren't sure how old the mountain is, but the lack of meteor craters on its flanks suggest that it started forming relatively recently, probably less than 100 million years ago. 3-D view of Olympus Mons: The largest of the volcanoes in the Tharsis Montes region, as well as all known volcanoes in the solar system, is Olympus Mons.Olympus Mons is a shield volcano 624 km (374 mi) in diameter (approximately the same size as the state of Arizona), 25 km (16 mi) high, and is rimmed by a 6 â¦ Olympus Mons is reserved for the mightiest mountain. Around its perimeter an outward-facing cliff ascends as high as 10 km (6 miles) â¦ It has a height of nearly 25 km (16 mi) above Mars' surface and a diameter of 600 km, making it about as large as Arizona.