MOUNT ST HELENS, A VOLCANIC ERUPTION IN AN MEDC (More Economically Developed Country)

Slides:

Advertisements

Similar presentations

The Cause of the Mt. St. Helens Eruption.

Advertisements

MEDC Case Study - Mount St.Helens, USA

Mt. St. Helens. Mt. St. Helen's, May 1980 (The U.S.A.) Erupted on the morning of May 18 th 1980, after being inactive for over 120 years. Caused by the.

Mt. St. Helens By: Ann Wielenberg. Introduction The first sign of activity at Mount St. Helens in the spring of 1980 was a series of small earthquakes.

Composite Volcanoes Review: What characteristics make a composite volcano? Answer: High Gas, High Silica, High Viscosity.

Living in an active zone Revision lesson. Why are plate margins hazardous? What are the plate margins and how do plate movement generate a variety of.

Lecture 9: Volcanic Hazards Our Hazardous Environment GEOG 1110 Dr. Thieme.

Mount St Helens by Alice Graham. Location of the volcano and background history A volcanic peak, 2,549 m (8,363 ft) high The mountain is 6 miles (9.5.

1A2 Geography Objectives: To identify three types of volcano. To discuss both the positive and negative effects of volcanic activity.

Volcano Mount Saint Helens By Dana Listfield. Mount St. Helens Location: Washington State, USA.

1A2 Geography 24 February, 2015 Objectives: To introduce students to a case study on a volcanic eruption in North America – Mount St. Helens.

8.3 Notes Effects of Volcanic Eruptions. Key Concept: The effects of volcanic eruptions can change human and wildlife habitats. Did you know that a volcanic.

Plate Tectonics Revision

Supervolcanoes Aims To be able to locate and label Supervolcanoes To distinguish between Supervolcanoes and Volcanoes.

Mount St Helens, USA, 1980.

Mount. St. Helens By: Joshua Ibasco.

 Formed when the Juan de Fuca plate, an oceanic plate, pushed under the North American plate, a continental plate.  Magma forced up through the Earth's.

Effects of Volcanic Eruptions

Volcanoes and Other Mountains

SOL WG.2B PHYSICAL AND ECOLOGICAL PROCESSES. PLATE TECTONICS The surface of the earth is constantly changing due to plate tectonics and erosion and weathering.

VOLCANIC ERUPTION - MONSERRAT

The Far Corner: Washington’s Geography and Geology

WHY DO PEOPLE LIVE CLOSE TO VOLCANOES IF THEY ARE SO DESTRUCTIVE?

Mt. St Helens Eruption and present day activity

A volcano is a mountain or hill through which molten rock, also known as lava and gases, erupt.

5.1 Volcanoes. volcano - a mountain that forms in Earth’s crust when molten material, or magma, reaches the surface volcano - a mountain that forms.

Volcanoes Chapter 7.

Chapter 7: Volcanoes. New Vocabulary Lava- magma (or hot, liquid rock) that reaches the surface Pyroclasts- hot rock fragments (from the Greek word “pyro”

Volcanoes and Earthquakes By: Hannah Hanania, Madeline Luong, & Cily Simson.

MOUNT SAINT HELENS BY SHANJESSICA PRINCESS KHALIA.

Mount St. Helens We are here.

1A2 Geography 2 nd March, 2015 Objectives: To revise the earth’s surface and the processes that shape the crust.

WHY DO PEOPLE LIVE CLOSE TO VOLCANOES? To answer the question lets remind ourselves about the structure of a volcano.

Active Earth Volcanoes and Earthquakes We are learning to understand that there are different types of volcanoes.

The Far Corner: Washington’s Geography and Geology Essential Question How does Washington’s geography and geology affect the way we live?

NATURAL HAZARDS A brief introduction to physical processes for Key Stage 3 Geography.

1. Name the plate boundary in figure 1. (1 marks) 2.Describe the movement that occurs at this plate boundary (2 marks) 3.Name one other boundary which.

VOLCANIC ERUPTIONS.

Volcanoes – Friend or Foe?

Volcanoes Table of Contents Volcanoes and Plate Tectonics

St. Helens Volcano Washington, USA. May 1980 Samantha, Jennifer & Bryan.

Mt. St. Helen’s Washington State Katie Reibling & Jessie Radel.

Volcanoes Volcano video. The cause of it all… What causes volcanoes to erupt??? The shift in the Earth’s plates are what causes volcanoes to form.Earth’s.

Volcanoes.  Volcano Vocabulary  volcano  magma  lava  Ring of Fire  magma chamber  pipe  vent  lava flow  crater  dormant  extinct  caldera.

A) Give an example of a fold mountain range. (1 Mark) b) Describe the human activities found in Fold Mountains. (4 Marks) c) Explain the problems of living.

Earthquakes and Volcanoes General Overview. Key Words Tectonic Plates Lava, Magma Crater Magma Chamber Richter Scale Seismograph Seismometer Tilt Metre.

8.3 Notes Effects of Volcanic Eruptions. Did you know that a volcanic eruption can have both negative and positive effects? Did you know that a volcanic.

Living Near Volcanoes Hazards and Benefits.

Table of Contents Volcanoes and Plate Tectonics Volcanic Eruptions Volcanic Landforms Volcanoes.

Volcanoes Affect Earth

Mt. Rainier Tectonic Setting

The Eruption of Mount Pinatubo

The Far Corner: Washington’s Geography and Geology

The Far Corner: Washington’s Geography and Geology

Earthquakes and volcanoes

Effects of Volcanic Eruptions

Activity at plate boundaries - volcanoes

Bell work week 16 Pick a science word and write the definition.

What determines the Characteristics of lava?

Where are the World’s most deadly volcanoes?

The Far Corner: Washington’s Geography and Geology

Presentation transcript:

MOUNT ST HELENS, A VOLCANIC ERUPTION IN AN MEDC (More Economically Developed Country)

Where is Mount St Helens?  Mount St Helens is a volcano in north west USA.  It is in the Cascade Mountains which are FOLD mountains The Cascades Mt St. Helens

Mt St Helens – causes of the eruption Juan de Fuca North American Plate

Mt St Helens Located in the USA Mt St Helen’s eruption (May 1980) JUAN DE FUCA PLATE NORTH AMERICAN PLATE DESTRUCTIVE PLATE BOUNDARY Internet Links

Mt St Helens is located on a destructive plate boundary where a continental plate (North American) meets an oceanic plate (Juan de Fuca). Juan de Fuca plate North American plate Which plate is denser? Describe what happens when the oceanic plate descends under the continental plate. Mt St Helens – causes of the eruption

Mt St Helens – the eruption

WATCH VIDEO CLIP OF MOUNT ST HELENS ON FROG WEBSITE

BEFORE

AFTER

MOUNT ST HELENS, USA DESTRUCTIVE JUAN DE FUCA AND NORTH AMERICAN PLATE

N 0 10km Mt St Helens – consequences of the eruption

Hot mudflows raise the temperature of the rivers and lakes to 30ºC Two million birds, animals and fish are killed. 60 people die from the eruption. Up to 70mm of ash falls across Washington … 7000 school students have an early summer vacation due to problems on the roads Mudflows block and divert rivers. The US army takes 18 months to dig out the debris from the River Toutle. Communications routes threatened – railway and road bridges destroyed, Portland harbour blocked A decrease in tourism What damage did the eruption cause? Short term Or long term? The post office and Lone Fir Motel shut down in Cougar. Damage to crops=$175million

This lava is weathered (broken down) to form a fertile soil, Tourists are attracted to areas of volcanic activity. Geothermal energy (heat from the earth) can be produced in many volcanic areas. Why do people live in volcanic areas? ADVANTAGES: Minerals eg sulphur

Why do people live in volcanic areas? DISADVANTAGES: Explosions and eruptions cause: 1.Dangerous gases 2.Loss of life 3.Loss of homes, animals, wildlife, trees and crops 4.Disease and fires 5. Avalanches, mudflows and floods