Avalanches and Landslides
Submitted to: Ms.Delgado
By DEWAYNE REDD
1. a.WHAT IS AN AVALANCHE OR LANDSLIDE?
b.EXACTLY HOW DOES AN AVALANCHES OCCUR
2. a.I TALK A LITTLE ABOUT PAST AVALANCHES
b.PAST DEATHS FROM AVALANCHES
3. a.CONCLUSION CLOSING OF MY REPORT
What is an avalanche? , well it's a large mass of snow and ice or of earth or rock sliding down a mountain side or a cliff. And how does an avalanche occur, well mainly they happen by vibrations caused by movement of the earth such as an earthquake, gunfire, rainy weather, and many more.
Now I would like to talk a little about past avalanches and landslides that have occurred like the 1903 Frank landslide and avalanche that happened at the same time, in Alberta Canada it destroyed the parks canyons it's beautiful trees' it's wonderful sights and killed nearly one hundred people, and covered a small town near Alberta with ice and snow.
Another devastating avalanche incident is the 1964 Sherman slide, in which a huge avalanche was triggered by the 1964 Alaskan earthquake. The slide spilled out onto the Sherman glacier, during the big slide several other smaller slides happened and those were the one that took lives in Anchorage, and destroyed property
There are a couple of types of avalanches and how the destroy so much this one is named "Loose Snow Avalanches"1, it starts' in a small area then grows in size and mass as it descends.Another type is the "Slab Avalanche" it actually starts in a large area of ice and snow and then begins to slide.
On September 12 of 1717 crusaded down the Troilet, Italy glacier, gaining speed on a cushion of air reaching a falling velocity of km/hr over a 3600 m fall. Two towns were destroyed, with seven people killed and a 120 cows lost. The slosh of an avalanche ran up the far side of the valley at a speed of 125 km/hr.
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