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Mt St Helens erupted at 8:32 am PDT on May 18, 1980(a VEI 5 event). it erupted with 24 megatons of thermal energy. so yes, Mt St Helens was a very strong and large eruption. history repeats itself so it is safe to assume that it will happen again.
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoMount St. Helens is both an explosive and nonexplosive volcano. This means that it can cause calm lava flows and at the same time it can blow half of the mountain off.
Wiki User
∙ 11y agoThe Richter scale is used to measure earthquakes, not volcanic eruption. Volcanic eruptions are measured by Volcanic Explosivity Index. The 1980 eruption was measured at VEI-5.
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Is a any volcano bigger than mt st Helens?
NO no volcano is bigger than Mt st Helens
Is moont st helens on land or sea?
Mt St Helens is on land.
What hemisphere is mt st Helens in?
Mt St Helens is located in two hemispheres: the northern and the western.
What mt range is mt st helens in?
ROCKIES
Is mt st Helens a violent or nonviolent volcano?
Mount St Helens is violent.
Where was the explosion of mt st Helens?
At Mt. St. Helens.
What Volcano in the northwestern US?
Mt. St. Helens Mt. St. Helens
How many miles is Tacoma from Mt Rainier and Mt St Helens?
About 92 miles to Mt. St. Helens from Tacoma
When was the first eruption of mt st helens?
Mt St Helens first erupted on May 18, 1980
Is a any volcano bigger than mt st Helens?
NO no volcano is bigger than Mt st Helens
Whice state is mount st Helens you?
Mt st. Helens is in Washington.
Is moont st helens on land or sea?
Mt St Helens is on land.
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 hemisphere is mt st Helens in?
Mt St Helens is located in two hemispheres: the northern and the western.
What mt range is mt st helens in?
ROCKIES
What is mount st helens landmark?
Mt St Helens is located in Skamania,County
