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For how long had mount st helens been inactive?
123 years
How long would it take to hike mount st helens?
how long would it take to hike mount st Helens
How long has mount fuij been standig for?
Believed to have been formed 'several hundred thousand years ago'
How far away is the Columbia river from Mount St Helens?
Mount St. Helans is aproximatly 120km or 75 miles away from the pacific ocean.
How long did it take to rebuild the towns that were burnt down by the mount St. Helens eruption of 1980?
1 second
Why did mount st helens go boom?
Pressure inside the earth caused the explosion aftera long build up.
How long was mount saint Helens inactive for?
it lasted for 5 minutes! alot can happen in a matter of secounds!! on one of the question they put48 hours!! WHAT!! Answer: 5 minutes :)
How big was the cryptodome on the side of mount st helens?
The cryptodome on the side of Mount St. Helens was approximately 1,300 feet long, 65 feet wide, and 40 feet high. It was a large bulge caused by rising magma beneath the volcano before its 1980 eruption.
How was Mount St Helens formed?
Mount St. Helens was formed by volcanic eruptions and flows over a long period of time.The Cascade Mountains were formed by the collision of the Juan de Fuca Plate with the North American plate. Lava was forced upward to create volcanoes such as Mount Adams and Mount St. Helens.The modern summit domes were the Kalama dome, formed between 1490 and 1647, and the Goat Rocks dome, formed between 1800 and 1857. These raised the mountain to its highest modern height. In 1980, the Goat Rocks dome was obliterated by the avalanche and eruption.A new dome, as well as a surrounding glacier, have formed within the horseshoe-shaped crater. But to reach its pre-1980 size will require many more lava flows over a period of hundreds of years.
How long ago did mount visuvius form?
Mount Vesuvius formed approximately 25,000 years ago.
Has there ever been a volcano in THE USA?
Yes, the United States has several active volcanoes, including in Hawaii (Kilauea, Mauna Loa), Alaska (Mount Redoubt, Mount St. Augustine), and the Cascade Range (Mount St. Helens, Mount Rainier). Hawaii and Alaska have the most volcanic activity in the U.S.
Who was the first to climb Mount Saint Helen's?
I don't know who was the first person to climb Mt St. Helens, but below is a good site to visit regarding the mountain: http://www.mshinstitute.org/ It was Thomas J. Dryer
