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mount saint helens formed a massive buldge because the magma was blocked of frm the top of the volcano so it turned to the side and formed the big bulge the lava still couldn't get out so was forming the bulge to make more pressure on the skin that was blocking it from getting out in the end there was an earth quake measuring 5.1 on the Richter scale the north face of the volcano collapsed into a massive rock avalange the bulge was going down with it. nearly 230 square miles was blown down or buried beneath volcanic deposits.
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoMt. 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 in its entire history; However, the most recent Eruption that made the highest V.E.I. rating of 8 was 74,000 YBP at the Toba Supervolcano in Indonesia.
Wiki User
∙ 9y agoWiki User
∙ 9y agoNo, there are many larger volcanoes.
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What is the name of the biggest volcano on the Earth?
I know this one. I will come back later to tell you the answer. But the only thing I can tell you about the biggest volcano on Earth is that it's bigger than Mount. Everest! And another thing - it's in Hawaii.
Is Mt St Helens a shield cinder cone or composite volcano?
No. In terms of the size of the structure itself, the largest volcano on Earth is Mauna Loa, which makes up the majority of the volume of the isaldn of Hawaii (the big island). The largest volcano known to science is Olympus Mons on Mars. The tallest volcano on Earth in terms of elevation is Ojos de Salado on the Chile-Argentina border at 22,615 feet. By comparison Mount St Helens is at 8,365 feet (9,677 before the 1980 eruption). Mount St Helens did not produce the largest eruption either. The largest volcanic eruption in recorded history was the 1815 eruption of Mount Tambora in Indonesia, which was on the order of 100-200 times larger than the 1980 eruption of Mount St Helens.
What side effects were caused by mt st helens eruption of 1980?
From an underground earth quake forcing the magma to explode the top of the volcano{mountian}.
What is the largest active volcano on earth?
Mount Loa in Hawaii a.k.a Mount Kea/ Mount Mauna
Which planet had biggest volcano other than earth?
mars
Is mount Olympus the biggest volcano in the solar system?
No, the biggest volcano in the solar system is Olympus Mons on Mars (Mount Olympus is on Earth).
How is the formation of Mount St. Helens volcano different than a hot-spot volcano?
A "hot spot" stays in the same place while the Earth's crust moves above it.
Is mount st Helens the youngest volcano on earth?
No, not by any definition. If you define the "youngest volcano" by "most recently erupted", then that honor goes to Kilauea, which has been erupting non-stop since 1983. Mount St. Helens last "erupted" in early 2008 when steam escaped from a fracture in the lava dome.
How was the earth's surface built up as result of the eruption of mount st helens?
the two of earths plat collided and formed upwards and made a volcano!
What is the name of the biggest volcano on the Earth?
I know this one. I will come back later to tell you the answer. But the only thing I can tell you about the biggest volcano on Earth is that it's bigger than Mount. Everest! And another thing - it's in Hawaii.
Is Mt St Helens a shield cinder cone or composite volcano?
No. In terms of the size of the structure itself, the largest volcano on Earth is Mauna Loa, which makes up the majority of the volume of the isaldn of Hawaii (the big island). The largest volcano known to science is Olympus Mons on Mars. The tallest volcano on Earth in terms of elevation is Ojos de Salado on the Chile-Argentina border at 22,615 feet. By comparison Mount St Helens is at 8,365 feet (9,677 before the 1980 eruption). Mount St Helens did not produce the largest eruption either. The largest volcanic eruption in recorded history was the 1815 eruption of Mount Tambora in Indonesia, which was on the order of 100-200 times larger than the 1980 eruption of Mount St Helens.
Is Mauna Loa the biggest volcano on earth?
yes. mauna loa is the biggest volcano.
How was mount st Helen erupted?
Mt. St. Helens erupted by the pressure to make a volcano explode. Lava originates deep below the Earth's surface where it is still extremely hot, with magma at the bottom of the lava. a 5.1 earthquake triggered mt st helens to erupt
What side effects were caused by mt st helens eruption of 1980?
From an underground earth quake forcing the magma to explode the top of the volcano{mountian}.
What is the largest active volcano on earth?
Mount Loa in Hawaii a.k.a Mount Kea/ Mount Mauna
What is a volcano?
A volcano is a mount (or mountain) that has magma in it. A volcano also is like an earthquake releasing pressure from the inner core of the earth. If there is a lot of pressure to be released this will cause the eruption to be bigger and more destructive, like the volcano Mount Tambora that erupted in 1815.
Which planet had biggest volcano other than earth?
mars
