The Shishaldin Volcano is extremely active. It has undergone many eruptions over the past two decades, including major eruptions in 1993, 1995, 1997, and 2004. It suffered two particularly violent eruptions in 1830 and 1932, but probably the most famous of eruptions occured in 1999.Between March 13 and May 27, the Shishaldin Volcano erupted after several months of earthquakes and other signs of volcanic unrest like tremors of low frequency signifying ash explosions. When spewing ash upwards of between 15 and 20 kilometers, the Shishaldin euption reached it peak on April 19. Basaltic lava flowed down the northern flank of the mountain. It was the largest eruption seen at Shishaldin in the last 175 years. Thankfully, Shishaldin is not near enough to surrounding towns to cause severe devastation, but it did damage seismic instrumentation.
Thursday, March 26, 2009
What is Shishaldin's eruption history?
The Shishaldin Volcano is extremely active. It has undergone many eruptions over the past two decades, including major eruptions in 1993, 1995, 1997, and 2004. It suffered two particularly violent eruptions in 1830 and 1932, but probably the most famous of eruptions occured in 1999.Between March 13 and May 27, the Shishaldin Volcano erupted after several months of earthquakes and other signs of volcanic unrest like tremors of low frequency signifying ash explosions. When spewing ash upwards of between 15 and 20 kilometers, the Shishaldin euption reached it peak on April 19. Basaltic lava flowed down the northern flank of the mountain. It was the largest eruption seen at Shishaldin in the last 175 years. Thankfully, Shishaldin is not near enough to surrounding towns to cause severe devastation, but it did damage seismic instrumentation.
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