File:Mt Usu, Japan (ASTER).jpg
![File:Mt Usu, Japan (ASTER).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Mt_Usu%2C_Japan_%28ASTER%29.jpg/486px-Mt_Usu%2C_Japan_%28ASTER%29.jpg?20230430121822)
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Summary
[edit]DescriptionMt Usu, Japan (ASTER).jpg |
English: LEFT: On April 3, 2000 ASTER captured this image of the erupting Mt. Usu volcano in Hokkaido, Japan. This false color infrared image, covering an area of 18 km (13 miles) by 22 km (15 miles), of Mt Usu volcano is dominated by Lake Toya, an ancient volcanic caldera. On the south shore is the active Usu volcano. On Friday, March 31, more than 11,000 people were evacuated by helicopter, truck and boat from the foot of Usu, that began erupting from the northwest flank, shooting debris and plumes of smoke streaked with blue lightning thousands of feet in the air. Although no lava gushed from the mountain, rocks and ash continued to fall after the eruption. The region was shaken by thousands of tremors before the eruption. People said they could taste grit from the ash that was spewed as high as 2,700 meters (8,850 ft) into the sky and fell to coat surrounding towns with ash. Mount Usu has had seven significant eruptions that we know of, and at no time has it ended quickly with only a small scale eruption, said Yoshio Katsui, a professor at Hokkaido University. This was the seventh major eruption of Mount Usu in the past 300 years. Fifty people died when the volcano erupted in 1822, its worst known eruption. In the image, most of the land is covered by snow. Vegetation, appearing red in the false color compoiste, can be seen in the agricultural fields, and forests in the mountains. Mt. Usu is crossed by three dark streaks. These are the paths of ash deposits that rained out from eruption plumes two days earlier. The prevailing wind was from the northwest, carrying the ash away from the main city of Date. Ash deposited can be traced on the image as far away as 10 kilometers (16 miles) from the volcano. RIGHT: On |
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Date | Taken on 3 April 2000 | ||
Source |
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Author | NASA/METI/AIST/Japan Space Systems, and U.S./Japan ASTER Science Team |
Camera location | 42° 36′ 00″ N, 140° 48′ 00″ E ![]() | View this and other nearby images on: OpenStreetMap | ![]() |
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ![]() |
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current | 12:18, 30 April 2023 | ![]() | 1,174 × 1,447 (644 KB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://asterweb.jpl.nasa.gov/gallery/images/usu2.jpg via Commons:Spacemedia |
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