Mount Saint Helens is a volcano located in southwestern Washington. It is 8,363 feet tall.

700 WordsApr 23, 20193 Pages
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. The present-day name, Mount Saint Helens, was received in 1792 by a man named George Vancouver. He was captain of the British Royal Navy, at the time. The name was given in honor of the British Ambassador of Spain, Alleyne Fitzherbert, who had the title Baron St. Helens. Three…show more content…
St. Helens. II. ERUPTIONS Many recorded and known eruptions of Mt St Helens dates all the way back to the 19th century. Early settlers and some Indians staying in the local area observed infrequent eruptions. Mount Saint Helens was more active than expected throughout a 26 year interval from 1831- 1857. Scientists believe that it may have erupted a little over a century before that, in 1800. After that possible eruption there was no activity until 1831. After the eruption in 1857, Mt Saint Helens only gave off little steam outbreaks; after that, nothing more had occurred. The little steam outbreaks had occurred in 1898, 1903, and 1921. Due to the fact that no activity had happened for 123 years, the predominance of the residents in the 20th century described Mt St Helens not as a hazardous threat, but as a beautiful, calm mountain. The most previous, recorded eruption was happened on May 18, 1980. At 12:36 pm, Mount Saint Helens began erupting steam and ash about 6,000 ft. (feet) into the air, above the volcano. The actual explosion, releasing lava and ash, produced a 250 ft. (foot) wide crater. About a month afterwards, a second moderately bigger crater formed. The two large craters combined together to create one colossal crater in the volcano. III. EFFECTS OF THE EXPLOSION The lethal eruption killed 57 people, including geologist David Johnson, due to ash fall, thermal injuries, and agony. Traffic accidents during the explosion killed 4 people.

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