https://padlet.com/zaynab_ahmad/zefjub2xk5nu Made with the help of a typing monkey en-us 2017-04-03 13:33:30 UTC 2017-04-13 13:15:22 UTC hello@padlet.com zaynab_ahmad https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/164615680 https://docs.google.com/presentation/d/1L0XLznm0j_MK76hIw7cZGRipD8oBKKbICXYxipaRkiM/edit#slide=id.p]]> 2017-04-04 13:49:24 UTC https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/164615680 zaynab_ahmad https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/164868215 I will describe the causes of Earthquakes and describe how Earthquakes happen. ]]> 2017-04-05 13:25:28 UTC https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/164868215 zaynab_ahmad https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/164870836 When a break line (the fault) between two blocks of rock suddenly moves, the movement causes vibrations (seismic waves) to race rapidly outward in all directions from the focus. The point at ground level directly above the focus is called the epicenter. ]]> 2017-04-05 13:33:09 UTC https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/164870836 zaynab_ahmad https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/164872246 2017-04-05 13:37:01 UTC https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/164872246 zaynab_ahmad https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/164875761 2017-04-05 13:46:51 UTC https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/164875761 zaynab_ahmad https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/164876264 When there is movement of tectonic plates along a fault, rocks along the underground fault suddenly move and release energy, the movement causes vibrations (seismic waves) to race rapidly outward in all directions from the focus. The point at ground level directly above the focus is called the epicenter. ]]> 2017-04-05 13:48:19 UTC https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/164876264 zaynab_ahmad https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/164877743 2017-04-05 13:52:55 UTC https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/164877743 zaynab_ahmad https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/165127119 Most Earthquakes happen at or near tectonic plate boundaries. On a map, they are concentrated along the edges of the Pacific Ocean where many volcanoes are also located. Earth's crust experience a lot of stress because the plates are colliding, separating or grinding past each other. The movement and interactions of the plates into different types of faults. ]]> 2017-04-06 13:14:04 UTC https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/165127119 zaynab_ahmad https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/165129590 2017-04-06 13:21:39 UTC https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/165129590 zaynab_ahmad https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/165130695 The plates move away from each other. Stress from the stretching makes the rock thinner. This tension creates faults. Because the crust is thin near these boundaries, earthquakes lend to be shallow. A mid-ocean ridge is an example of a divergent boundary where earthquakes occur. ]]> 2017-04-06 13:24:56 UTC https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/165130695 zaynab_ahmad https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/165132415 Two plates collide causing rock to be squeezed. This stress is called compression. These faults are called reverse faults. Rocks are thrust over one another. Two things can happen at reverse faults. First the plates may crumble up to form mountains. Second one plate can sub duct or sink underneath the other into the mantle. Earthquakes on or near these faults are deep and tend to be very strong. ]]> 2017-04-06 13:30:26 UTC https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/165132415 zaynab_ahmad https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/165134570 At these boundaries, plates slide past each other horizontally. Stress at these boundaries is cause by pushing different parts of the body in opposite directions (shear stress). As the rocks move on both sides of the fault they get broken as they grind past one another. Strike-slip faults are common at these boundaries. They are shallow like divergent]]> 2017-04-06 13:37:22 UTC https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/165134570 zaynab_ahmad https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/165138083 Danger to People and Structures.
The seismic waves are released from the epicenter of the earthquake with the strongest being at the epicenter and the waves are weaker the further from the epicenter. structures will move and may not be able to withstand the movement and collapse. Most injuries occur from these collapses. Other factors are fires, gas leaks, floods and polluted water.

Tsunamis
A tsunami occurs when there is an earthquake under the ocean. This causes a lot of water to get displaced creating extremely long waves that can travel across the ocean at speeds of 800 km/hr. The waves travel outward like the seismic waves from a land earthquake. Waves increase as they reach the shore and can be as high as 30 m. They can smash and destroy anything in their path and many lives are lost from drowning. ]]> 2017-04-06 13:46:51 UTC https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/165138083 zaynab_ahmad https://padlet.com/zaynab_ahmad/zefjub2xk5nu/wish/165662710 1.Know all the vocabulary words.

2. Explain the relationship between earthquakes focus and epicenter.
Ans. The focus is right under the epicenter, and the epicenter has the most destruction. The closer you are to the epicenter the stronger the effects will be.

3. Explain the relationship between plate boundaries and earthquake locations.
Ans. Earthquakes can happen at or near plate boundaries that surround the Pacific Ocean.

4.Explain the forces that occur along convergent, divergent, and transform boundaries
Ans. Divergent boundaries pull apart and happen at normal faults.
Convergent boundaries collide and the types of stress they have is called compression. They happen at reverse faults and are really strong.
Transform boundaries slide past each other and the stress is called shear stress. These are called strike-slip faults.

5. What is the relationship between an earthquake and a tsunami.
Ans. A tsunami is when earthquakes happen underwater. 


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