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Earthquakes (oral presentation)

How Earthquakes interact with the four spheres and how sustainable the earth is when a natural hazard occurs
by

Rui Soares

on 10 December 2012

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Transcript of Earthquakes (oral presentation)

Earthquakes Earthquakes are a sudden and violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earth's crust. Peru Earthquake 1970 What is a Natural Hazard? The four spheres are called the Lithosphere, Hydrosphere, Biosphere, and the Atmosphere. Lithosphere (Geo sphere) Hydrosphere Biosphere The Four Spheres What is a Natural Hazard? Atmosphere How Earthquakes Affect the Four Spheres The Hydrosphere An earthquake will affect the hydrosphere if the earthquakes originated from below the surface of the water.This type of earthquake is known as a submarine earthquake. A submarine earthquake can cause a tsunami which in turn will start a chain of events potentially causing catastrophic disasters. The Atmosphere Earthquakes occurring could potentially harm the atmosphere. What if the earthquake ruptures a gas pipe. An earthquake send billions of particles of dust and other pathogens [a disease producing agent(micro organisms)] into the air, which in the future would affect the living organisms in the vicinity of the earthquake. The Lithosphere The lithosphere is made up 20 tectonic plates which when they push, slide or pull against each other cause earthquakes. What will this presentation look at? The Biosphere An earthquake affects the biosphere due to the large amount of human and animal activity. How do humans contribute in causing earthquakes? Ways in which humans have contributed in causing earthquakes... What Are Earthquakes? Haiti Case Study Haiti January 12th 2010 The events that occurred in January 12 2010 devastated not only Haiti but the entire world. The earthquake in Haiti was measured at 7.0 on the Richter scale. The population of Haiti before the earthquake was estimated at 9,780,064 people. There has not been an official release of the post population of Haiti.
It has been estimated that over 3,500,000 were affected by the earthquake.
220,000 have been estimated to have lost their lives in this disastrous event.
over 1.5 million people lost their homes in the event. The entire world banded together to support Haiti in the time of devastation and turmoil. The following YouTube video is about raising money for Haiti. Although there has been many large efforts towards rebuilding Haiti, most of the government civil servants died in the tragic earthquake, hardly any effort has been used to rebuild the devastated surroundings of Haiti. The effect this earthquake has on the population of Haiti is that it is estimated that over 70% of the population are living in poverty, How can we prepare for an earthquake? During an Earthquake inside and outside- During and earthquake take cover beneath a sturdy piece of furniture or a wall making sure that you are far away from any objects that could harm you in the event. Also making sure you are far away from windows and glass as it could harm you. If you are outside stay clear of any buildings and other objects that could fall on you during the event of an earthquake. After the Earthquake- help others in need, be prepared for aftershocks as these can cause the most harm. Stay out of damaged buildings and help clean up the damaged areas on the street. Any questions?
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