Essay about Mt. St. Helen

Let’s begin with Mount St. Helens which is located in the pacific northwest of the United States. To be more specific it is located in Washington State and is a part of the Cascade mountain range that spans from California to Canada. It is a composite volcano, which has steep sides that are formed by alternating layers of lava

Kilauea is a volcano in the Hawaiian Islands it is one of the five shield volcanoes in the Hawaiian language Kilauea means spewing or spreading. Mt St. Helens is an active stratovolcano in Washington it is named after British diplomat lord st Helens.

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.

Bagley, Mary. “Mount St. Helens Eruption: Facts & Information.” LiveScience, Purch, 28 Feb. 2013, www.livescience.com/27553-mount-st-helens-eruption.html

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.

Feel free to stretch, it's been a long ride. We will be stopping by a restaurant later to get some lunch. In front of you, you can see Humphreys Peak, the tallest mountain in the San Francisco Peaks. The San Francisco Peaks is actually a volcanic mountain range and is part of the San Francisco volcanic field. The peaks were once a stratovolcano but is now eroded and are the remains of the volcano. It is the only stratovolcano in the San Francisco Volcanic Field. The tallest mountain, Humphreys Peak, is about twelve thousand, six hundred and thirty-three feet in elevation, which is also three thousand, eight hundred and fifty-one meters tall. In fact, Humphreys Peak is the tallest point in all of Arizona. Also in this area, are more than six hundred volcanoes. Most of the volcanoes found here are basalt cinder cones. These volcanoes are relatively small. They are also usually less than one thousand feet in elevation. Another fact about these basalt cinder cones is that they are formed within a range of a couple of months to a couple of years. The San Francisco Volcanic Field also has several lava domes. Lava domes are formed by dacite and rhyolite magmas. Both of those types of magma are very rich and high in silica. So, as a result, the dacite and rhyolite magmas are very viscous and thick. As a matter of fact, the magmas are so viscous is thick that when volcanoes erupt, the magma tends to pile up and form very steep sided masses, which are the domes.

Mount St Helens erupted on the 18th May 1980 at 9am and is an active strata volcano Washington State USA, a MEDC. Where as on 18th July 1995, during the daytime, Montserrat, a LEDC during the day, Montserrat's Soufrière Hills composite volcano of a height 1050m, meaning sulphur hills, dormant for centuries, erupted and produced a phreatic eruption. The volcano is a strata volcano also. Mount St. Helens is a composite volcano which lies near to a destructive plate boundary where the small Juan de Fuca Plate is being subducted underneath the North American Plate where as the eruption

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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.

Bagley, M. (2013, February 28). Mount St. HelensEruption: Facts & Infomation. Retrieved December 15, 2016, from

Mount St. Helens Location: Washington, United States Latitude: 46.20 N Longitude: 122.18 W height: 2,549 meters or 8,364 feet - 9,677 feet before May 18, 1980 Type: Stratovolcano Number of eruptions in past 200 years: 2-3 Latest Eruptions: Between 1660-1700, around 1800-1802, 1831, 1835, 1842-1844, 1847-1854, 1857, 1980-? Present thermal activity: strong steaming Nickname: Mount Fuji of the West Remarks: continuous intermittent activity since 1980 with occasional eruptions of steam and ash; occasional pyroclastic flows; intermittent dome forming. MSH is considered a young volcano that developed over the last 40,000 years and is one of the most active volcanoes in the Cascade Range. Geologists predicted that the

To begin with Mt. Vesuvius was one of the most deadliest volcanoes we’ve ever known. To prove that statement Mt. Vesuvius is the only known active volcano on the mainland of Europe. It is known for the eruption in A.D. 79 that wiped out the city of Pompeii and the city of Herculaneum. The people were just doing their everyday thing, when Mt. Vesuvius which they didn’t even know was a volcano exploded, sending lava flowing towards Pompeii and the city of Herculaneum. If you look at the casts of the pompeians, they look more frightened than any other person would. Mt. St. Helens is known for it’s explosive 1980 eruption. The has been the most active volcano in the Pacific Northwest. About

In this report, we will talk about Mount St. Helens and how it is related to volcanoes. In the video about Mount St. Helens, geologists let us know why Mount St. Helen’s is the most deadly volcanic blast in the U.S. Mount St. Helens is a large eruptive cone and is a type of composite volcano that the volcano is composed of many layers of volcanic rocks. The video starts by informing us that this volcano is one of the biggest landslides. In addition, it let us know that volcanoes are dangerous and deadly because they are so hard to predict. Mount St. Helens is located in Washington State and forms part of the Cascade Mountain Range at the North American West Coast.

The 1980 Mt. St. Helens explosion revolutionized the scientific study and volcanic monitoring; the devastation brought many geologists to investigate the scientific and hazard assessments of the massive volcano explosion. This explosion became the deadliest catastrophic volcanic event that killed many people and destroyed many communities, which the explosion created a major landslide, directed blast, eruption plume, pyroclastic flows, and lahars (Vallance, Gardner, Scott, Iverson, Pierson, 2010). Vallance, Gardner, Scott, Iverson, and Pierson (2010) point out that the 2.8- cubic- kilometer landslide reduced the summit and the sudden decompression of shallow gaseous magma caused a directed blast that traveled about 500 kilometers per hour

Mount Saint Helens is a volcano located in southwestern Washington. It is 8,363 feet tall. Geologists say that Mount St. (Saint) Helens is a stratovolcano, also known as a composite volcano. Stratovolcano is a volcano that is built upward because of layers of hardened volcanic ash, lava, and other volcanic debris. These kinds of volcanoes are distinguished by their steep sides. They often erupt extremely explosively, putting people and properties nearby at risk.