https://padlet.com/erin_milhousen/nzzijfqmctqk Made with the strength to succeed en-us 2017-04-03 13:29:03 UTC 2017-04-18 13:23:12 UTC hello@padlet.com erin_milhousen https://padlet.com/erin_milhousen/nzzijfqmctqk/wish/164603357 https://docs.google.com/presentation/d/1zaYUq4gBAxpFtm03tjlc4HTOFdn8hD4V19_qNF3j3BY/edit]]> 2017-04-04 13:10:08 UTC https://padlet.com/erin_milhousen/nzzijfqmctqk/wish/164603357 erin_milhousen https://padlet.com/erin_milhousen/nzzijfqmctqk/wish/165662307 I will describe the causes of earthquakes and describe how they happen.  PACIFIC OCEAN!!

1. Know your vocab.

2. Know the realationship between an earthqukes focus and epicenter. 2b. focus is under the epicenter, The closer you are to the epicenter the stronger the effects.

3. Know the realationship between plate boundriess and earthquake locations. 3b. Earthquakes result from the movement of tectonic plates.

4.  Know the boundries, stress, and types 4b. Convert-Collide, compression, reverse faults, very strong. Divergent-Pull Apart, normal faults. Transform-Slide Past, strike slip faults, shear stress.

5. What is the realtion ship between an earthqauke and tsunami. 5b. Tsunamis are earthquakes that occur under the ocean floor.]]> 2017-04-10 13:20:33 UTC https://padlet.com/erin_milhousen/nzzijfqmctqk/wish/165662307 erin_milhousen https://padlet.com/erin_milhousen/nzzijfqmctqk/wish/165749725 When there is movement of tetonic plates along a fault rocks underground fault suddenly move and realease energy, the movement causes vibrations (siesmic waves) to race rapidly outwards in all direction from the focus. The point at ground level directly above te focus is called the epicenter.

]]> 2017-04-10 18:26:32 UTC https://padlet.com/erin_milhousen/nzzijfqmctqk/wish/165749725 erin_milhousen https://padlet.com/erin_milhousen/nzzijfqmctqk/wish/165751607 Danger to people and structures
The seismic waves are realsed from the epicenter nd 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. Most injuries occur from these collapses. Other factors are fires, gas leaks, floods, and polluted water.
Tsunamis
A tsunamis occurs when there is an earthquakes under the ocean. This causes a lot of water to get displaced creating extreamly long waves that can travel across the ocean at speeds of 800 km/hr. The waves from a land earthquake. Waves increase as they reach the shore and can be as high as 30 m. They can smash anything in thier paths and many lives are lost from drowning.]]> 2017-04-10 18:35:08 UTC https://padlet.com/erin_milhousen/nzzijfqmctqk/wish/165751607 erin_milhousen https://padlet.com/erin_milhousen/nzzijfqmctqk/wish/165753734 When a break line (the fault) between two blocks of rock suddenly moves, the movment causes vibrations (seismic waves) to race rapidly outwards in all directions from the focus. The point at ground level directly above the focus is called the epicenter.

]]> 2017-04-10 18:44:16 UTC https://padlet.com/erin_milhousen/nzzijfqmctqk/wish/165753734 erin_milhousen https://padlet.com/erin_milhousen/nzzijfqmctqk/wish/165883093 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 experiences a lot of stress because the plates are colliding, separating or grinding past each other. The movement and interactions of the plates causes the crust to break into different types of faults. ]]> 2017-04-11 13:53:50 UTC https://padlet.com/erin_milhousen/nzzijfqmctqk/wish/165883093 erin_milhousen https://padlet.com/erin_milhousen/nzzijfqmctqk/wish/165945031 The plates move away from each other. Stress from the stretching makes the rock thinner. This tension creates faults. Because the crust is thinner near these boundaries, earthquakes tend to be shallow. A mid-ocean ridge is an example of a divergent boundary where earthquakes occur.

Transform boundries
At these boundaries, plates slide past each other horizontally. Stress at these boundaries is caused 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. 

Convergent boundries
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.  ]]> 2017-04-11 17:44:52 UTC https://padlet.com/erin_milhousen/nzzijfqmctqk/wish/165945031 erin_milhousen https://padlet.com/erin_milhousen/nzzijfqmctqk/wish/166066588 Energy builds up. and reaslses during an earthquake

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