These days’s Symbol of the Day from NASA Earth Observatory includes a stratovolcano in Alaska’s Aleutian Island chain referred to as Frosty. The {photograph} displays Frosty’s 5,670-foot top, with town of Chilly Bay to the north.
“Even if the volcano has been dormant for 1000’s of years, the rock underneath its glaciated top tells a tale of its energetic previous,” mentioned NASA.
“Geologic surveys of the volcano point out that Frosty’s summit caldera is made up of 2 coalescing craters. Volcanic job most probably started from a unmarried central vent, and fissures on its flanks contributed to its expansion. However throughout the later phases of its construction, job shifted to a brand new predominant vent, developing its provide day two-crater summit.”
“In July and August 2001, the Alaskan Volcano Observatory won a number of stories of steam emanating from Frosty’s top. After some investigation, the observatory made up our minds that the volcano was once nonetheless inactive.”
The Aleutian Islands are a series of small islands positioned within the Northern Pacific Ocean, stretching from the southwest of Alaska to the northeast of Russia. They shape a part of the USA state of Alaska and are recognized for his or her rugged and lovely landscapes.
The islands also are necessary for his or her wealthy flora and fauna and are a part of the Pacific Ring of Fireplace, famous for his or her volcanic job.
The picture was once captured on April 22, 2023 by way of the OLI-2 (Operational Land Imager-2) on Landsat 9.
Symbol Credit score: NASA Earth Observatory
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