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Was the eruption of Mount St Helens in 1980 was the greatest explosive eruption in the last two hundred years of world data?
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∙ 11y ago
False.
Wiki User
∙ 11y ago
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Is mount st helens explosive or nonexplosive?
Mount St. Helens is known for its explosive eruptions. In 1980, it erupted violently and produced a massive explosive eruption that caused significant devastation to the surrounding area. Subsequent eruptions have also been explosive in nature.
Mt st helens volcano explosive or effusive?
Mt. St. Helens is known for its explosive eruption in 1980, characterized by ash clouds, pyroclastic flows, and lateral blasts. It is considered one of the most significant volcanic events in U.S. history.
Was Krakatoa in 1883 more explosive than Mt St Helen's in 1980?
Yes, far more explosive. The eruption of Krakatoa was more than 10 times larger than the 1980 eruption of Mount St Helens.
What is the example of quiet and violent eruptions of volcano?
A quiet eruption, also known as an effusive eruption, is characterized by the slow and steady flow of lava from the volcano without significant explosions or ash plumes. An example is the 2018 eruption of Kilauea in Hawaii. A violent eruption, also known as an explosive eruption, involves the sudden release of gas, ash, and debris with explosive force. An example is the 1980 eruption of Mount St. Helens in the United States.
How long did the lava flow last of the 1980 Mt St helens eruption last?
The lava flow of the 1980 Mt. St. Helens eruption lasted for about six years, from 1980 to 1986. The eruption was primarily explosive, but a dome-building phase followed that included the slow extrusion of lava.
What kind of eruption took place at mt st helens?
explosive
Is mount st helens explosive or nonexplosive?
Mount St. Helens is known for its explosive eruptions. In 1980, it erupted violently and produced a massive explosive eruption that caused significant devastation to the surrounding area. Subsequent eruptions have also been explosive in nature.
What is Washington's Mount St Helens?
An active strato-volcano that had an explosive eruption in May 1980.
How can the composition of magma affect the way volcano erupts?
If the composition of the magma is high in silica, the eruption will be explosive. The Eruption of Mt. St. Helens was an explosive eruption. If the composition of the magma is low in silica, it will produce a quiet eruption. The eruption(s) of Mt. Kilauea are quiet eruptions.
Are Mount St Helen's eruptions quiet or explosive?
Mount St Helens has produced both quite and explosive eruptions. It is best known for a very large explosive eruption in 1980.
What type of eruption was the 1980 eruption of mt st Helens?
The 1980 eruption of Mount St. Helens was a explosive eruption caused by a lateral blast. It was triggered by a massive collapse of the volcano's north flank, releasing pressure built up within the volcano.
Mt st helens volcano explosive or effusive?
Mt. St. Helens is known for its explosive eruption in 1980, characterized by ash clouds, pyroclastic flows, and lateral blasts. It is considered one of the most significant volcanic events in U.S. history.
Was Krakatoa in 1883 more explosive than Mt St Helen's in 1980?
Yes, far more explosive. The eruption of Krakatoa was more than 10 times larger than the 1980 eruption of Mount St Helens.
What is the example of quiet and violent eruptions of volcano?
A quiet eruption, also known as an effusive eruption, is characterized by the slow and steady flow of lava from the volcano without significant explosions or ash plumes. An example is the 2018 eruption of Kilauea in Hawaii. A violent eruption, also known as an explosive eruption, involves the sudden release of gas, ash, and debris with explosive force. An example is the 1980 eruption of Mount St. Helens in the United States.
What is mt st Helens volcanic explosivity index?
Mount St. Helens had a volcanic explosivity index (VEI) of 5 during its eruption on May 18, 1980. This VEI level indicates a significant explosive eruption that released a large amount of volcanic ash and caused widespread devastation in the surrounding area.
How long did the lava flow last of the 1980 Mt St helens eruption last?
The lava flow of the 1980 Mt. St. Helens eruption lasted for about six years, from 1980 to 1986. The eruption was primarily explosive, but a dome-building phase followed that included the slow extrusion of lava.
How was Mount Saint Helen eruption different from other eruptions?
The eruption of Mount Saint Helens was different from other explosive eruptions in that the initial blast was to the side, rather than straight up.
