An astronaut aboard the World House Station took this nadir (downward-looking) {photograph} of Parinacota and Pomerape, dual volcanoes within the Andes Mountains. The volcanoes compose the Nevados de Payachata volcanic workforce and shape a part of the border between Chile and Bolivia. Illuminated by means of early night time daylight, the snow- and glacier-capped peaks forged lengthy, distinct shadows.
Each Parinacota and Pomerape are stratovolcanoes with summits attaining roughly 20,500 toes (6,250 meters) above sea stage. Parinacota is the more youthful of the 2 volcanoes and its summit has a particular round 1,000-foot (300-meter) diameter crater. It’s also the extra traditionally energetic of the 2, with its most up-to-date eruption estimated to have happened inside the previous 2,000 years. Each volcanoes shaped right through the Pleistocene Epoch, however whilst Parinacota shows a recent conical form, the flanks of Pomerape had been eroded over the years into deep valleys.
A cave in of the western flank of Parinacota roughly 8,000 to twelve,000 years in the past produced a particles avalanche that traveled down the slope of the volcano right into a neighboring valley. The avalanche subject material is visual as a hummocky mass within the top-left a part of the picture. This sort of flank cave in is very similar to what happened at Mount St. Helens on Would possibly 18, 1980.
The avalanche subject material blocked the valley and brought about Chungará Lake to shape the place particles obstructed water channels. Following the flank cave in, next volcanic task reconstructed the conical type of Parinacota.
Okay’isi Okay’isini is any other Pleistocene-age volcano positioned southeast of the Nevados de Payachata Vary. The mountain is inside the Sajama Nationwide Park of Bolivia, which is the rustic’s oldest nationwide park, established in 1939.
Astronaut {photograph} ISS069-E-23100 was once received on June 19, 2023, with a Nikon D5 virtual digital camera the use of a focal duration of 400 millimeters. The picture was once supplied by means of the ISS Staff Earth Observations Facility and the Earth Science and Far flung Sensing Unit, Johnson House Middle. The picture was once taken by means of a member of the Expedition 69 team. It’s been cropped and enhanced to make stronger distinction, and lens artifacts had been got rid of. The World House Station Program helps the laboratory as a part of the ISS Nationwide Lab to lend a hand astronauts take photos of Earth that can be of the best worth to scientists and the general public, and to make the ones photographs freely to be had at the Web. Further photographs taken by means of astronauts and cosmonauts may also be seen on the NASA/JSC Gateway to Astronaut Pictures of Earth. Caption by means of Cadan Cummings, Jacobs, JETS II Contract at NASA-JSC.
