Mount St Helens Research Paper

With no prolonged periods of inactivity the volcano has continuously built up on itself. The last major eruption took place in 1790 and killed many people and animals, but numbers are unknown4. Starting in 1983 there was a chain of several eruptions that started and have yet to stop pushing lava through a lava tube till it reaches the Pacific Ocean. Over a span of twenty year the flow has

A volcano is an earth hazard that occurs on faults between tectonic plates on a destructive boundary and an eruption is a natural disaster. A primary impact happens immediately after the disaster and before any response like death or collapsing or destruction of buildings. A secondary impact occurs later after the disaster, such less farm produce or a reduction in tourism. The severity of these impacts will differ considerably in a MEDC and LEDC where volcanic eruptions have taken place. These may be seen in the Mount St. Helen volcano eruption as well as in the Iceland volcanic eruption. They may also

The side of mt st Helens has been blown off by the force of the blast and trees have been demolished buy the rocks crashing at them

Volcanoes are one of the most destructive, yet, most beautiful things on Earth. They can make a famous city choke in its own ashes in one day, like Pompeii. Or they can turn a once damaging mountain into a graceful and peaceful home for new life, like Mount St. Helen’s. All volcanoes are unique, and no two are the same. Some erupt differently than others, some look different than others, and all are located in different spots all over the world. I learned this while completing the project and the five volcanoes I researched are examples of my discoveries. The five volcanoes I researched were Mount Hood, Mount Mageik, Long Island, Mount Muria, and Las Pilas.

The cataclysmic eruption which caused the collapse of the caldera and the deposition of the Bishop Tuff was an explosive, fast event. It ejected coarsely porphyritic biotite rhyolitic ash and viscous lava with an approximate silica content of 76 percent. The total ejecta came to about 600

Normally, lava was able to flow out cracks or also known as vents in the mountain closing. But one day, Lava was building pressure on Mount St. Helens. At the end of April 1980, Mount St. Helens began to grow silently. Swelling was spotted on the

It was May 18th, 1980. The eruption of Mount St. Helens occurred in Washington,United States. The exact time it had happened is at 8:32:17. The eruption happened 96 miles out South of Seattle, Washington and 50 miles northeast of Portland,Oregon. Many people died during this time. About 50 people had died. 250 homes were destroyed. Along with 47 bridges, 15 miles of railways, 185 miles of highway was also destroyed. Many tiny earthquakes had happened a couple days before the eruption had happened.

Re-live the stories of the Lewis and Clark expedition! Packed with well-known stories from America’s past, St. Helens, Oregon is sure to intrigue even the most educated historian. Founded in 1850, St. Helens still works to provide plenty of entertainment for its residents and guests. With rent to own homes available you will definitely want to come join the crowd during the annual Kiwanis parade in June or become a part of the big Annual Celebration in September.

Consequently, it would have led to contamination of the water and the spread of disease. 230 square miles of forest burned and got destroyed. This would have a great effect on the logging industry because there would not be as many trees for them to cut down. In addition to this it would have a great effect on wildlife as 1000s of animals' homes would have been destroyed. It destroyed or extensively damaged over 200 homes, destroyed/ damaged 185 miles (300 km) of road and destroyed/ damaged 15 miles of railways. Airports closed (from 2days → 2 weeks). Over a thousand commercial flights were cancelled following airport closures. Lastly, unemployment rose rapidly after eruption.

Mount St. Helen is a very active volcano classified as a stratovolcano, stratovolcano is basically a tall volcano built up of layer after layer of hard lava, tephra, pumice, and volcanic ash. Mount St. Helens location is in Skamania County in Washington, with coordinates of 46 12'00.17"N122 11'21.13"W. Mount St Helen is famous because of its catastrophic eruption on May eighteenth in nineteen eighty. The eruption measured a five on the volcanic explosivity index. This is an index created by Chris Newell and Steven Self in the year nineteen eighty-two it was designed to try and measure the explosiveness of volcano eruptions to determine the value of the explosivity and qualitative observations ranging from zero to eight, eight being the

May 18, 1980 was a day that dawned sunny and beautiful. Mt. St. Helens stood out beautifully against the blue sky. The mountain had been rumbling quite a bit the past few days, and geologists were watching it carefully and monitoring vibrations. There had been a series of earthquakes from around March 12, up until present day. Over 170 earthquakes hit that were higher that 2.5 on the Richter scale in that short period of time. The earth shook with an earthquake that hit 5.0 on the Richter scale, at around 8:32 in the morning. That did it. Mount St. Helens blew apart with the force of over 500 times more powerful than the atomic bomb. The lateral blast traveled at over 300 miles an hour, and destroyed 230 square miles of forest in just 3 minutes.

On May 18, 1980 Mt. St. Helens erupted, and wrecked havoc on its surroundings through the debris avalanche, the lateral blast, the mudflows, and the ash that traveled halfway across the United States. It all began in March of 1980 when a 4.2 earthquake and 174 aftershocks let the world know that the volcano had woken

The blast was preceded by two months of intense activity that included over 10,000 earthquakes, hundreds of small phreatic (steam blasts) , explosions and the north side bulge. A magnitude 5.1 earthquake below the volcano at 8:32 am started the eruption. MSH is still a potentially dangerous and active volcano even though it has been quiet since 1995. In the last 515 years there have been four major eruptions and dozens of lesser eruptions. Two of the eruptions were only two years apart. In 1480, the eruption was about five times larger than the one in May 1980. There have been even larger eruptions during MSH' 50,000 year lifetime. After the May 18, 1980 eruption, there have been five smaller explosive eruptions over a five month period. Since then, there have been 16 dome building eruptions through October 1986 when the new dome in the crater was formed. As the mountain was torn open, the pressure in inside was suddenly relieved. The rock shattered inside the mountain was exploded out the top at speeds over 200 miles per hour. The blast was so strong that it leveled whole forest of fir trees. Geologist call this a "stone wind" since the winds carried the rocks form the blast with them. The rocks gave the winds extra force that let them flatten the trees. 150 square miles of land was leveled. The edges of this area also lost their forested areas from the heat of the blast and the fires it caused. The original blast of the

Simultaneously, Mt Adams is the second highest mountain and the most under looked volcano in Washington State. In terms of volume, Mt. Adams is the second largest volcano (behind Mt. Shasta) in the Cascade Range (Alt & Hyndman 1984). Since it has been relatively quiet for the past couple millennia, it does not receive as much attention as it’s counterparts and draws very few tourists due to it’s remote setting (Hill 2004). Prior to recent research, not much was known regarding Mt. Adam’s eruptive history, frequency or how explosive previous eruptions have been. (Hildreth & Lanphere 1994). In this paper, I will discuss the geography, history, geology, and hazards of Mt. Adams and it’s surrounding area; focusing heavily on its geology and geologic hazards.

Lumps of Lava cool into solid rocks as they fly through the sky, forming rounded chunks that can be also known as bombs, while pieces with corners and sharp edges are named blocks. Both bombs and blocks can cause a great deal of damage. As the volcano begins to burst, the sky fills with choking, smoky powder, while it starts raining lava, and rock. The air warmed quicker than when you pour kerosene on a fire, with a sound so loud it circled the earth four times, red hot lava flows down the side of the volcano and magma spews out the top. The only taste in my mouth is the smoke coming from the lava, as the gas in the air turned all my silver jewelry black. I feel very frightened knowing this is such a normal thing to happen in different