Well, I don't know if there is an exact answer, but I know that ash from the eruption spread throughout the whole USA
The red exclusin zone was 5km where no activity could take place, the blue where some activity (fertilising trees, logging etc.) could take place was about 15km
The eruptive effects were felt worldwide for a full year after the 1980 eruption of Mt. St. Helens. There was enough carbon dioxide as well as sulfur dioxide erupted from the volcano that it was able to measurably reduce global temperatures by 1.5 degrees. The heaviest impacted area from the eruption was the area directly to the north that was part of the blow down zone following the lateral blast from the volcano. There was also however a big impact on the central United States due to the ash fall that killed crops and injured live stock.
96 miles
The way Mount Saint Helens affect mankind is that Mount Saint Helens eruption destroyed lots of homes killed 57 people in the eruption and the eruption from Mount Saint helens cost over one billion dollars in damage.
Well, I don't know if there is an exact answer, but I know that ash from the eruption spread throughout the whole USA
The red exclusin zone was 5km where no activity could take place, the blue where some activity (fertilising trees, logging etc.) could take place was about 15km
The eruptive effects were felt worldwide for a full year after the 1980 eruption of Mt. St. Helens. There was enough carbon dioxide as well as sulfur dioxide erupted from the volcano that it was able to measurably reduce global temperatures by 1.5 degrees. The heaviest impacted area from the eruption was the area directly to the north that was part of the blow down zone following the lateral blast from the volcano. There was also however a big impact on the central United States due to the ash fall that killed crops and injured live stock.
big!!
closest big town to the Mt St Helens National Monument & visitor center is Longview WA.
He blows down 2 but tries to blow down three.
mt st. helens
3
Yes.
96 miles
it is big
The Past Tense of the word "blow" (from the English verb:"to blow") is "blew". For example: "The wind blew all night" / "The big, bad wolf blew down the house of the three little pigs."