When was mt etnas most recent eruption?
Mount Etna last erupted in January, 2014. It was a minor eruption that closed the airport and created a new crater on the southeastern side of the volcano.
Mt. St. Helens was not the largest volcanic eruption in history. Through recent history there have been much larger. The May 18, 1980 eruption of Mt. St. Helens was a V.E.I. 5. The V.E.I. system also known as the Volcanic Explosivity Index ranges from 0-8. These ratings are based on the output of material in Cubic Kilometers when the eruption is explosive. There is not a definitive answer to the largest explosive eruption on Earth…
No. Mount Rainer is dormant. Its last eruption was in 1894, which is recent in geologic terms. There are no signs of an imminent eruption, but there is little doubt that it will erupt again eventually. An eruption of Mount Rainier would pose a very serious threat to the cities of Tacoma and Seattle. Because of this it is considered one of the most dangerous volcanoes in the world.