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Hazards Of Mount St. Helens

Published on Nov 19, 2015

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PRESENTATION OUTLINE

You just moved in to your new home right next to Mount St. Helens , congratulations. Now instead of dealing with tornados in Ohio you get to deal with active volcanoes in your backyard

Now as the Mount St. Helens park ranger it is my job to warn you about the hazards you shall most likely face.

The most likely hazard you will face is the ash fall. This ash,if the mountain explodes like it did in 1980, will most likely kill everything near you. Should should probably have a bunker to survive or just not be there.

Another thing you might have to worry about is lava flows. Normally theses lava flows only goes six miles but in extreme cases it can go ten miles. Your house is far enough away to not be affected.

Pyroclastic flows are very dangerous. You your self should be ok I you get out when warned, but you house will most likely be destroyed. The destructions of this hazard is in its speed and heat from the explosion.

You should worry about pyroclastic surges also. These are not very dense but contain harmful gases and ash that is so hot it sets trees on fire. If you are caught in one of these it's is very difficult to impossible to escape. You should be ok if you evacuate when told. Your house will probably be destroyed since you live about ten miles from the volcanoe.

While this may not affect you since you do not live on the river but lahars are very dangerous. Lahars happen when the glaciers on the mountain are melted do to the explosion and it all flows down rivers. It picks up everything in its path trees, boulders, and even bridges. Combine that with the extreme heat it carries it can be a huge catastrophic disaster. So if the volcanoe explodes don't go near a river just stay where the authority's put you.

So now that you know the hazards of living next to a volcanoe I hope you will remember what I told you a don't die.