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The magma started to work its way up the vent of the volcano. But the path was blocked due to dried lava from other eruptions. So the magma took a different path towards the northern side of the volcano. The buldge then formed, this is called a cryptodome (bubbleof magma) which means Hidden Dome. This buldge grew by 6 feet every day, until the volcano eventually erupted.
What else can I help you with?
What did scientists think the bulge was on the side of Mt St Helens before the 1980 eruption?
Before the 1980 eruption of Mt. St. Helens, scientists thought that the bulge on the side of the mountain was a result of magma intruding into the volcano, causing the north flank to swell. They were monitoring the bulge, but did not anticipate the scale of the eruption that eventually occurred.
Is mt st Helens a violent or nonviolent volcano?
Mount St Helens is violent.
What was the land around St. Helens used for?
what is the land around mt st helens used for
What is the county mt st Helens is in?
Mt St Helens is located in Skamania County, Washington State, USA.Elevation: 8365 ft
What hemisphere is mt st Helens in?
Mount St. Helens is located in the northern hemisphere, in the state of Washington in the United States.
Why a bulge formed on the north side of mt. St. Helens just before it erupted?
A "bulge" developed on the north side of Mount St. Helens as magma pushed up within the peak.
How mt st helens formed?
It was formed from converget bounderies.
What did scientists think the bulge was on the side of Mt St Helens before the 1980 eruption?
Before the 1980 eruption of Mt. St. Helens, scientists thought that the bulge on the side of the mountain was a result of magma intruding into the volcano, causing the north flank to swell. They were monitoring the bulge, but did not anticipate the scale of the eruption that eventually occurred.
Where was the explosion of mt st Helens?
At Mt. St. Helens.
When was mt st helens formed?
In formed within the last 4000 year time period.
What Volcano in the northwestern US?
Mt. St. Helens Mt. St. Helens
Why are volcanoes such as Mt St Helens on the North American plate?
Mt. St. Helens was formed when the North American Plate passed over a hot spot on the Earth's crust. A hot spot is a weak spot in the Earth's crust that magma can escape through. This hot spot is now the vent of Mt. St. Helens.
When was the first eruption of mt st helens?
Mt St Helens first erupted on May 18, 1980
Whice state is mount st Helens you?
Mt st. Helens is in Washington.
Where is Mt St Helenas?
mt. st. helens is in the state of Washington
Mountain Range home to Mt St Helens?
Mt. st. Helens is part of the High Cascade Range of mountains.
What is mount st helens landmark?
Mt St Helens is located in Skamania,County
