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Thursday, Sep 03, 2015
Seismicity at the volcano continued to be elevated over background levels during 26 August-1 September, indicating that low-level eruptive activity confined to the summit crater continued. ... [more]
Thursday, Jun 04, 2015
AVO reported that seismicity at Shishaldin continued to be elevated over background levels 20-26 May indicating that low-level eruptive activity confined to the summit crater likely continued. ... [more]

Shishaldin volcano

Stratovolcano 2857 m / 9,373 ft
United States, Aleutian Islands, 54.76°N / -163.97°W
Current status: minor activity or eruption warning (3 out of 5)
Shishaldin webcams / live data
Last update: 3 Sep 2015
Typical eruption style: explosive
Shishaldin volcano eruptions: 2014, 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 No recent earthquakes
TimeMag. / DepthDistanceLocation


The beautifully symmetrical volcano of Shishaldin is the highest and one of the most active volcanoes of the Aleutian Islands. The 2857-m-high, glacier-covered volcano is the westernmost of three large stratovolcanoes along an E-W line in the eastern half of Unimak Island. The Aleuts named the volcano Sisquk, meaning "mountain which points the way when I am lost." A steady steam plume rises from its small summit crater. Constructed atop an older glacially dissected volcano, Shishaldin is Holocene in age and largely basaltic in composition. Remnants of an older ancestral volcano are exposed on the west and NE sides at 1500-1800 m elevation. Shishaldin contains over two dozen pyroclastic cones on its NW flank, which is blanketed by massive aa lava flows. Frequent explosive activity, primarily consisting of strombolian ash eruptions from the small summit crater, but sometimes producing lava flows, has been recorded since the 18th century.
Smithsonian / GVP volcano information

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