An Earthquake on the St Mt Helens caused a bulge to appear, which gave the Volcano an oppurtunity to erupt, also in addition to that the earthquake caused a hole in the volcano which caused the magma chamber to split so the magma could rise up the main vent!
The Mt. St. Helens eruption ash map shows the distribution and extent of ash fallout from the volcanic eruption. It provides information on the areas affected by the ash, including the direction and distance the ash traveled.
The Mt. St. Helens ashfall map shows the areas affected by volcanic ash after the eruption of the volcano. It provides information on the distribution and extent of the ashfall, helping people understand the impact of the eruption on different regions.
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.
Mount St. Helens was approximately 9,677 feet (2,950 meters) tall before the 1980 eruption.
No, Mount St. Helens last erupted in 2008. The most notable eruption of Mount St. Helens occurred on May 18, 1980, resulting in significant devastation to the surrounding area.
The 1980 eruption of Mount St. Helens.
Mt St Helens first erupted on May 18, 1980
The 1980 eruption of Mount St Helens was a VEI 5.
Mt. St. Helens benenfited humans by the rock from lava are used to build and repair roads in this day!
explosive
people died
fireweed
United States, Washington.
57 People died in the eruption.
About 2 cubic km of material was erupted. About the size of the Mt St Helens eruption in 1980.
mt. st. Helens erupted in may 18, 1980
18th of May 1980