https://electroverse.net/stratospheric-eruption-at-shishaldin-volcano-alaska/
The explosive activity at Shishaldin Volcano, Alaska has increased today, Wed, Jan 8, according to reports issued by the Volcanic Ash Advisory Center (VAAC) Anchorage.
The turn of the New Year has brought with it a violent uptick at Shishaldin stratovolcano–the highest mountain peak of the Aleutian Islands.
From Jan 3 to Jan 7 a number of ash ejections to between 20,000 ft and 24,000 ft were recorded.
The turn of the New Year has brought with it a violent uptick at Shishaldin stratovolcano–the highest mountain peak of the Aleutian Islands.
From Jan 3 to Jan 7 a number of ash ejections to between 20,000 ft and 24,000 ft were recorded.
The height of the emissions then increased to 27,000 ft late on Jan 7 –which prompted the Alaska Volcano Observatory (AVO) to raise the Aviation Color Code from Orange to Red and the Alert Level from Watch to Warning (for the first time since 1999)– and was quickly followed by today’s (Jan 8’s) even larger eruption to 33,000 ft (10.1 km), as estimated by the VAAC Anchorage and backed-up by satellite imagery.
Particulates ejected to altitudes above and beyond 32,800 feet (10 km) often linger in the stratosphere where they have a direct cooling effect on the planet.
It is possible for the current activity to intensify (or decrease) with little warning, stated the AVO.
Stay tuned for updates.
BACKGROUND
Stratovolcano: 2857 m / 9,373 ft
Aleutian Islands, Alaska: 54.76°N / -163.97°W
Current status: ERUPTING (4 out of 5)
Mount Shishaldin is a moderately active volcano on Unimak Island in the Aleutian Islands chain of Alaska. It is the highest mountain peak of the Aleutian Islands. The most symmetrical cone-shaped glacier-clad large mountain on Earth, the volcano’s topographic contour lines are nearly perfect circles above 6,500 feet.
Shishaldin appears to be a solar minimum volcano, with recent larger eruptions coming in 2008 and 1995–96, according to wikipedia.
Full Eruption list: 2008, 2004, 2002, 2000, 1999, 1997, 1995, 1993, 1986-87, 1981 (?), 1979, 1978, 1976, 1975, 1967, 1963, 1955, 1953, 1951, 1948, 1946-47, 1932, 1929, 1928, 1927, 1925, 1922, 1912 (?), 1901, 1899 (?), 1898, 1897 (?), 1883, 1880-81, 1865 (?), 1842, 1838, 1830, 1927-29, 1826, 1825, 1824, 1790 (?), 1775-78
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