The Eruption of Mount Saint Helens

Topics: Volcano, 1980 eruption of Mount St. Helens, United States Pages: 2 (697 words) Published: May 20, 2013
“The Eruption of Mount St. Helens”
On May 18th, 1980, in Washington State, the volcano, Mount St. Helens erupted. This eruption caused widespread terror throughout the towns surrounding the mountain. The magma from the volcano burned up the forest and killed most of the animals in the area. It affected the wildlife greatly because, after the eruption, the ecosystem was burned and smoldered thus killing thousands of animals in the region. This eruption was the deadliest of all the volcanic activity in the United States, and the people who live near the mountain are still affected by what the eruption did to this day. There were many warning signs that preceded the nine-hour eruption of Mount St. Helens. After being dormant for 123 years, the volcano showed her first sign of life on Thursday, March 20th. There was a 4.1 magnitude earthquake that centered directly underneath of the volcano. A week later, the snow on the mountain smudged because of the ash. On March 30th, 79 earthquakes were recorded on the mountain! A few days later, on April 3rd, tremors were recorded signaling movement of magma deep within the volcano. By that time, ash, rocks, and ice chunks were daily occurrences and the slopes were ash-covered. A few days before the eruption, it all stopped. But on May 18th, it all went wrong … On May 18th, 1980, the worse volcanic eruption in United States history occurred. Mount St. Helens, in Washington States, violently erupted. At 8:32 A.M. a 5.1 magnitude earthquake struck about one mile below the mountain, causing the largest landslide in history. The snow and ice moved at speeds of more than 175 miles per hour and removed over 1300 feet from the summit, sweeping away almost the entire North side of the mountain. The landslide raised temperatures about 60 degrees higher than usual. There was a lot of ash that came out of the volcano when it erupted as well. The ash caused a major problem to the townspeople because it contaminated the oil systems,...
Continue Reading

Please join StudyMode to read the full document

You May Also Find These Documents Helpful

  • Case Study: Mount St. Helens Essay
  • Essay on Primary Succession & Species Diversity of Flora on Mount St. Helens, 32 Years Post-Eruption
  • The Economic Effects of the 1980 Eruption of Mount St. Helens on Local Citizens Essay
  • Mount Saint Helens and Ecological Succession Essay
  • newsreport on effects of mount st helens explosion Essay
  • Mount St Helens Essay
  • Volcanoes: Volcano and Eruptions Explosive Eruptions Essay
  • Essay on Volcanic Eruptions

Become a StudyMode Member

Sign Up - It's Free