Mt. St. Helens Essay, Research Paper

The two instance surveies I chose for my paper are the Mount St. Helen and Mount Pinatubo vent eruptions. In this paper I will compare and contrasts the two volcanic eruptions on an person, economic, and globally deductions.

The Mount St. Helens eruption took topographic point on May 18, 1980. The eruption was designated as a five on the vent index. The Mount Pinatubo eruption took topographic point on

June 15, 1991, and it was designated as a six on the vent index. Mount Pinatubo eruption was approximately 10 times larger than Mount St. Helens.

Both vent eruptions experienced a similar form. Both vents had temblors before the existent eruption. Both eruptions generated enormous sums of ash and volcanic dust that resulted in big lahars that devastated much of the environing land, metropoliss, and places. Both eruptions subsequently experienced many little temblors.

Another similarity of both these eruptions is the consequence it had on the people. In both eruptions lives were lost due to roofs fall ining or being incinerated from high temperature ash clouds, which effected evidently those people who lost there lives and household members along with lasting members of the community. Peoples in both of these eruptions experienced loss of there places and personal properties, chiefly due to the lay waste toing lahars brushing at that place places off, or being covered in big measures of volcanic dust and ash, or merely being shook to the land by the legion temblors. Peoples in both eruptions besides experienced high emphasis degrees emotional strivings and economic adversities.

Although both people suffered economic adversities due to the vent eruptions, I would hold to state this was a point of contrast. The cost of the Mount St. Helens eruption cost around 1.1 billion dollars, I did non happen any dollar sums for the Mount Pinatubo eruption but I am about certain it did non be that much in dollars go oning in a much non-industrial state such as the Philippines. The Mount St. Helen eruption it was estimated that it cost 2.2 million dollars and 10 yearss to take ash from main roads and airdromes. In Mount Pinatubo I did non happen any information that they removed the ash, it covered and destroyed 250,000 estates of agricultural land, and filled overflow drainage that was 4-5 centuries old which resulted in mass implosion therapy. The Mount St. Helen eruption took out 4 billion pess of lumber, plenty to construct 150,000 places. The lahars as a consequence of the big amo

unts of ash and volcanic dust blending with rain destroyed 200 places. The ash autumn from Mount St. Helens got into cars and clogged engines and ruined other machinery. The cost for the Mount Pinatubo eruption could ne’er be measured in dollars and cents for the resulting effects it had on a planetary graduated table.

Another difference in the two eruptions was the effects it had on a planetary graduated table. The Mount St. Helens eruption was a large-scale eruption that erupted a big sum of ash. The ash drifted throughout the United States but I did non happen that much information that it had erupted so much it effected the whole planet in so many negative ways like Mount Pinatubo did. Mount Pinatubo erupted so much ash into the air the really all right atoms stayed in the planetary ambiance cut downing the planetary temperature every bit much as 1 degree Fahrenheit. Besides during the eruption a big cloud of S dioxide was released into the ambiance. When the S dioxide combines with H2O to organize sulphuric acid, which is a chief constituent of acid rain, which harms fish, trees, and tonss of other beings.

Both Mount St. Helens and Mount Pinatubo were lay waste toing natural catastrophes but what I found existent interesting is how Mount St. Helens did so small comparing to Mount Pinatubo but there is so much more promotion towards Mount St. Helens. Mount Pinatubo eruption was the universe? s largest known eruption in more than half a century, and caused the most alteration to the planet, but in all the information I found is seemed to me the bottom line was the dollar sum. The concluding similarity I found was how both incidents were monitored by volconoligist and people were told to evacuate restricting the human life lost.

Tilling, Robert? Volcanic eruptions of Mount St. Helens: Past, Present, and Future. ? USGS

Particular Interest Publications ( 1990 ) n. pag. Online.Internet 23 Nov. 1998

Available: Vulcan.wr.usgs.gov/volcanoes.

Topinka, Lyn? CVO Photo Archives- Mount St. Helens Images? USGS/Cascades

Volcano Observatory, Vancouver, Washington n.pag. online. Internet. 23 Nov.

1998 Available: Vulcan.wr.usgs.gov/photo.

Lipman, P.W. and Mullineaux, D.R. ? The 1980 eruptions of Mount St. Helens?

Washington, U.S. Geological Survey Professional Paper n. pag. On-line Internet. 23 Nov. 1998 Available: volcano.und.nodak.edu.

? State me about Pinatubo? Volcano World n.pag. Online Internet 23 Nov. 1998

Available: volcano.und.nodak.edu/vw.docs.