1980 eruption of Mount St. Helens.

    1980 eruption of Mount St. Helens. 

In the 1980’s there was a huge volcanic eruption that happened at Mount St. Helens. St. Helens is a volcanic mountain located in Washington state and it was one of the only volcanic eruptions that happened in the United States since 1915 (Lassen Peak, California). After the eruption happened, there was a series of earthquakes that occurred for the next three months from the volcanic magna that was under the earth’s surface. Before the eruption the United States Geologic Survey (USGS) scientists convinced local authorities to make sure that the mountain was completely evacuated before the eruption occurred and doing so saved the lives of thousands that were on the mountain before it erupted. It’s great that the scientists urged authorities to keep the area evacuated and closed despite the pressure from the public to reopen it; otherwise the damage could have been much worse.

250px-MtRedoubtedit1

After the volcano erupted there was eruption column that rose 80,000 feet above the volcano into the atmosphere. An eruption column is basically volcanic ash that gets emitted during an explosive volcanic eruption and the ash forms a column rising many miles above the top of the volcano. This creates basically an atomic bomb of ash everywhere; it fills the sky with ash and there’s nothing that can be done about it. The volcano had a huge impact on the mountain, wildlife, and the landscape around it. Unfortunatly the volcano killed roughly fiftey seven people and the ash and magma has changed the surrounding landscape. The eruption also caused volcanic mudslides that reached as far as fifty miles because the heat of the volacano caused the snow, ice, and glaciers on St. Helens to melt. The area is now preserved as as the Mount St. Helens National Volcanic Monument. Recently Mount St Helens looks like a big snowy mountain but underneath is hot magma that is growing. Scientists are able to keep a eye on St Helens with all of their up-to-date sensors and readings that they have and can predict if St Helens is in danger of erupting once more.  75513-004-A5C27F0A

Leave a Reply

Your email address will not be published. Required fields are marked *