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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).

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14y ago
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13y ago

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.

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15y ago

It measures the intensity of a volcano from 0-8. 0 being less intense and 8 being the most intense

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11y ago

The 1883 eruption of Krakatoa measured a VEI-6.

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11y ago

i think its the height of ejected magma

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Q: What index measures the magnitude of volcanic eruptions?
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What did mount Pinatubos 1991 erution measure at on the Richter scale?

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.


Do volcanoes have a scale magnitude?

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.


What did Krakatoa measure on the Richter scale?

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.


Are there different levels of volcanoes?

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.


What is 1 volcanic explosivity index of grimsvotn?

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.

Related questions

What did mount Pinatubos 1991 erution measure at on the Richter scale?

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.


Do volcanoes have a scale magnitude?

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.


How do scientists classify volcano eruptions?

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.


What would you use to measure the magnitude of an volcano?

Volcanic Explosivity Index


What is a volcano explosive 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.


What was the Richter scale for the Kobe earthquake?

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.


What was the magnitude of the mt st Helens eruption in 1980?

Wikipedia lists its explosive index as 5. Read below for more details about the Volcanic Explosivity Index.


What did Krakatoa measure on the Richter scale?

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.


Are there different levels of volcanoes?

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.


What are the volcanic eruption types in order from the least destructive to most destructive?

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/


What is the magnitude of nevado del ruiz volcano?

The Richter scale is applied to earthquakes, not volcanoes. The 1985 eruption was a VEI 3 on the Volcanic Explosivity Index.


What is 1 volcanic explosivity index of grimsvotn?

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.