Introduction For five hours‚ multiple avalanches of hot ash‚ pumice‚ and gases poured out of the crater. During explosive eruptions‚ fiery‚ pyroclastic flows travel down slope from a volcano. The Mount St. Helens pyroclastic flow spread as far as five miles north of the crater. The hot lava flows and suffocating ash falls destroying plant and animal life. The eruptions are over‚ but consequences go on. What happens to the surrounding environment after such an eruption? The Earth repairs itself from
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Situation On March 16th 1980‚ in the usually calm and tranquil southeast region of Washington State located in the Cascade Mountains‚ began to tremble with earthquake activity lasting until the afternoon of the 26th of March. This was the first of many warnings to geographers and local authorities of the impending dangerous eruption coming from the normally silent Mount Saint Helens. The richter magnitude range was 2.6-4.2. There were 142 recorded earthquakes over 2.4 in the 24 hours between March
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“The Eruption of Mount St. Helens” On May 18th‚ 1980‚ in Washington State‚ the volcano‚ Mount St. Helens erupted. This eruption caused widespread terror throughout the towns surrounding the mountain. The magma from the volcano burned up the forest and killed most of the animals in the area. It affected the wildlife greatly because‚ after the eruption‚ the ecosystem was burned and smoldered thus killing thousands of animals in the region. This eruption was the deadliest of all the volcanic activity
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CHEMISTRY REVISION GUIDE for IGCSE Coordinated Science This revision guide is designed to help you study for the chemistry part of the IGCSE Coordinated Science course. The guide contains everything that the syllabus says you need you need to know‚ and nothing extra. The material that is only covered in the supplementary part of the course (which can be ignored by core candidates) is highlighted in dashed boxes: Some very useful websites to help you further your understanding include: •http://www
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Away from the coastal resorts the volcanic island of Lanzarote is a natural wonder full of surprises for the intrepid explorer. As you drive up the west coast of Lanzarote on the LZ 2 towards Timanfaya National Park make a left turn onto the LZ 703 as you come to the salt flats at Janubio and continue north towards the town of El Golfo. The scenic LZ 703 hugs the ocean on this part of Lanzarote and has been the backdrop for many a car commercial thanks to the crashing Atlantic waves and the way the
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First‚ we will discuss Mount St. Helens Volcano. Mount St. Helens is a stratovolcano located in the Pacific Northwest of the United States within Washington State. A stratovolcano is also known as a composite cone‚ which is “a large symmetrical structure that consists of alternating layers of explosively erupted cinders and ash interspersed with lava flows (Lutgens‚ 2012.)” Due to the cone shape of the volcano‚ stratovolcanoes are known for creating large explosive eruptions that can eject vast amounts
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INTRODUCTION: The Ring of fire (figure 1) is a horse shoe shaped fault line. This fault line is prone to Earth quakes and volcanic eruptions. The ring of fire Is home to 452 volcanoes and 75% of the worlds dormant and active volcanoes live on the Ring. PLATE TECTONICS Plate tectonics is a theory that the earth is split up in to different areas of the world. They glide on the mantle of the earth the plates act like a hard ridged shell (fig 2 plate tectonics) Some of the plate tectonics move very
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Volcanos are mighty mountains that rise from the ground but these beautiful beast come with a catch. When they “wake up” they can tear a whole island or town to pieces and pieces. Most volcanoes cause tons of destruction including flames and lava when awakened this roaring beast isn’t so peaceful. When volcanos form they form just like a regular mountains actually they are they are just regular mountains.That is why when they erupt it shocks many people because they all thought the possibility
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Mt Etna: MEDC case study of a volcanic eruption Location: Mt Etna is located in Sicily‚ Italy Europe’s highest (3‚300m)and most active volcano Supports rich agricultural land Displays dramatic volcanic scenery created by several calera collapses There have been at least 60 flank eruptions and many summit eruptions since AD1600‚ around half have occurred since the beginning of the 20th century Since 2001 it has seen an eruption every year Physical reasons for the event: Mt Etna is a composite volcano
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To what extent can planning and preparedness mitigate the effects of volcanic hazards? A hazard is a situation that poses a level of threat to life‚ health‚ property‚ or environment. There is a very big difference that helps prepare for a volcanic hazard and that is whether you are in a MEDC or a LEDC. In a MEDC monitoring volcanic zones and potential hazards is an option many LEDC’s don’t have. In Italy at Mt Etna they have Geochemical monitoring programs currently run by INGV which focus on the
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