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Transcript of VOLCANOES
Volcanoes are the most destructive natural disasters ever.If you want to know about volcanoes,this is the prezi for you.
Mt.Vesuvius erupted in 29 A.D.that was 2,000 years ago.Thousands of people died that day. Everything was incinerated. Boom!!!!! The noise was so loud, it could be heard miles away.It happened, MT.Vesuviushad erupted.Ash filled the sky.Pieces of firey rocks fell from the sky.Everyone ran for their lives. Lava flows spread for miles.
An eruption happens when an earthquake strikes.That's when magma is squeezed up to the surface,and blows out.It depends if the earthquake is big or small,because if the earthquake is big,the bigger the explosion.The smaller the earthquake the smaller the explosion.The bigger the explosion,the more damage there will be.The smaller the explosion, the less damage.
Magma flow is when magma pours out the sides of the sides of the volcano,when a volano erupts. Some magma flows can run for miles. The farthest magma flow is 10.1 miles.Magma flows do a lot of damage too.Theymake trees go on fire ,damage houses,even cities! But the ash helps the crops because the ash is very rich.
The damage is the result of an explosion. Explosions occur on the fault line. A fault line is a line that can set off an earthquake.Big ones at that.One earthquake was so big ,it destroyed a whole city.In 1906 , the San Fransisco earthquake struck.It swallowed acres of the city.It engulfed half the city.People fled from the city.
Volcanoes can do lots of destruction,like destroy homes,and kill people.
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