On occasion, a large bubble of gas, or “gas slug,” rises up from within the volcano and triggers a Strombolian eruption. McMurdo Station just 35 kilometers (22 miles) away-means the volcano has been accessible to and well-studied by researchers.Īlthough not visible in this image, gases regularly rise from the lava lake on the volcano’s summit. Nearby research facilities-including the U.S. That’s not hard to do, given that the volcano stands 3,794 meters (12,450 feet) above sea level-the second-tallest of more than 100 known Antarctic volcanoes.Įrebus is the dominant feature of Ross Island, which juts out of the Ross Sea and the Ross Ice Shelf. The Sun angle was still low enough that morning to illuminate the volcano’s eastern slopes, while the volcano cast a mighty shadow to the west. The area was just days away from constant 24-hour sunlight when this image was acquired. The image is false-color but looks natural, which is a result of visible and near-infrared wavelengths of light (ASTER bands 3, 2, 1). Mount Erebus is Earth’s southernmost active volcano.Įrebus is featured in this image acquired on October 19, 2019, by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA’s Terra satellite. But there are a few landmarks that stand out from the endless white, including a volcano that continuously emits gases and occasionally erupts. Most of the Antarctic continent is buried under the planet’s largest single mass of ice.
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