Volcanic eruptions categorized on the Volcanic Explosive Index (VEI) are based on the amount of matter ejected during an eruption. The VEI uses a scale from 0 to 8, with 8 being an eruption ejecting more than 1,000 cubic kilometers of matter and each smaller increment releasing one-tenth the amount of ejected matter. A VEI of 5 would indicate an ejection of more than 1 cubic kilometer of matter, while a VEI of 4 would be greater than 0.1 cubic kilometers and a VEI 6 would be more than 10 cubic kilometers but less than 100 cubic kilometers (VEI 7).
Volcanic Explosivity Index (VEI)
-made by Chris Newhall and Stephen Self in 1982
-the scale measures how much volcanic material is thrown out, how high the eruption goes, and how long it lasts.
-volume of products, the size of the eruption cloud, and other qualitative observations are used to measure the explosive value.
-the scale is actually open-ended to the right. Zero (0) value is given for non-explosive eruptions. The largest recognized explosions are an eight (8). An increase of one along the scale means that it is ten times more explosive than the one before it.
It measures the intensity of a volcano from 0-8. 0 being less intense and 8 being the most intense
The 1883 eruption of Krakatoa measured a VEI-6.
i think its the height of ejected magma
The Richter scale measures earthquakes, not volcanic eruptions. Eruptions are rated on the Volcanic Explosive Index. On this scale, the 1991 eruption of Mount Pinatubo was a VEI 6.
Volcanoes don't, but volcanic eruptions do. Volcanic eruptions are rated by Colcanic Explosivity Index or VEI based on the volcume of material ejected. It ranges from VEI-0 for the non-explosive eruption of lava to VEI-8 for the most violent eruptions of supervolcanoes.
Nothing. The Richter scale is used to measure the intensity of earthquakes, not volcanic eruptions. The eruption of Krakatoa in 1883 was a VEI 6 in the volcanic explosivity index.
There are three main types of volcano that erupt in different ways, bu these are not levels. There are levels of volcanic eruption on the Volcani Explosivity Index. The scale reanges from VEI-0 for non-explosive eruptions to VEI-8 for the largest super eruptions. Each level on the scale indcates and eruption an order of magnitude large than the one below it.
Grimsvotn volcano, located in Iceland, has had eruptions with a range of Volcanic Explosivity Index (VEI) values. The most recent major eruption in 2011 had a VEI of 4, producing significant ash clouds that disrupted air travel in Europe. However, past eruptions at Grimsvotn have reached VEI 6, making them much larger and more explosive.
The Richter scale measures earthquakes, not volcanic eruptions. Eruptions are rated on the Volcanic Explosive Index. On this scale, the 1991 eruption of Mount Pinatubo was a VEI 6.
Volcanoes don't, but volcanic eruptions do. Volcanic eruptions are rated by Colcanic Explosivity Index or VEI based on the volcume of material ejected. It ranges from VEI-0 for the non-explosive eruption of lava to VEI-8 for the most violent eruptions of supervolcanoes.
Volcanic eruptions are classified on the Volcanic Explosivity index, which is based on parameters such as the amount of material erupted and the height of the eruption column.
Volcanic Explosivity Index
Volcanic explosive index is a measure of how explosive a volcanic eruption is based largely on the amount of material released. It ranges from VEI-0 for non explosive eruptions to VEI-8 for massive super eruptions.
It did not have a Richter scale rating. The Richter scale is used to rate earthquakes, not volcanic eruptions. Volcanic eruptions are rated on the Volcanic Explosivity Index. The 1991 eruption of Mount Pinatubo was a VEI 6, described as a colossal eruption.
Wikipedia lists its explosive index as 5. Read below for more details about the Volcanic Explosivity Index.
Nothing. The Richter scale is used to measure the intensity of earthquakes, not volcanic eruptions. The eruption of Krakatoa in 1883 was a VEI 6 in the volcanic explosivity index.
There are three main types of volcano that erupt in different ways, bu these are not levels. There are levels of volcanic eruption on the Volcani Explosivity Index. The scale reanges from VEI-0 for non-explosive eruptions to VEI-8 for the largest super eruptions. Each level on the scale indcates and eruption an order of magnitude large than the one below it.
Hawaiian eruptions are the least severe. It is a 0 on the Volcanic Explosivity Index VEI scale.Strombolian eruptions are relatively mildly explosive 1-2 on the VEI scale.Vulcanian eruptions are 2-3 on the VEI scale.Peléan eruptions are 4-5 on the VEI scale.Plinian eruptions are the most destructive. They are from 6-8 on the VEI scale.http://ete.cet.edu/gcc/?/volcanoes_explosivity/
The Richter scale is applied to earthquakes, not volcanoes. The 1985 eruption was a VEI 3 on the Volcanic Explosivity Index.
Grimsvotn volcano, located in Iceland, has had eruptions with a range of Volcanic Explosivity Index (VEI) values. The most recent major eruption in 2011 had a VEI of 4, producing significant ash clouds that disrupted air travel in Europe. However, past eruptions at Grimsvotn have reached VEI 6, making them much larger and more explosive.