EARTHQUAKES!

EARTHQUAKES!. Jody Pearl, Kasie Drobnick, Ellen Cochran. An earthquake is…. A phenomenon that results from and is powered by the sudden release of stored energy in the crust that propagates seismic waves. . Why do earthquakes happen?.

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EARTHQUAKES

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Earthquakes

Earthquakes. earthquake. The shaking that results from the movement of rock beneath Earth's surface. Earthquakes. focus The point beneath Earth's surface where rock breaks under stress and causes an earthquake. Epicenter The point on Earth's surface directly above an earthquake's focus.

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Earthquakes

Earthquakes. Group: Tanner Marco Antonio Ramón Felipe. Photos. Photos. What are earthquakes?.

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Earthquakes

Earthquakes. An earthquake is shaking or movement of the Earth. They are caused by plate tectonics. . Faults. Earthquakes occur on faults. Faults are fractures along blocks of rock Faults allow the blocks to move relative to one another . Types of Faults.

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EARTHQUAKES

EARTHQUAKES. What is an Earthquake?. Sudden movement in the earth’s crust which releases energy Movement occurs along areas of weakness in the earth’s crust Areas of weakness are generally cracks in the rock. Place on earth’s surface directly above focus. Place where rock begins to separate

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Earthquakes

Earthquakes . 1. What is the name of the instrument that records earthquake waves?. Seismograph Seismogram. Seismograph. 2. What type of plate motion is it when 2 plates move away from each other, causing weak, shallow earthquakes?. Divergent Convergent Transform . Divergent.

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Earthquakes occur on faults

Earthquakes occur on faults. Active Fault. Earthquakes Create Seismic Waves. (also hypocenter). 3 Types of Seismic Waves. P wave: Primary S wave: Secondary Surface waves. Fastest Slowest. Depiction of Seismic Waves. Types of Earthquake Waves. Wave terminology

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EARTHQUAKES

EARTHQUAKES. Chapter 19. Seismology refers to the branch of Geology that studies earthquakes. WHAT IS AN EARTHQUAKE? When stress builds in rocks, they reach their elastic limit and eventually break. At the breaking point, an earthquake is “born.”

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Earthquakes

Earthquakes. Effect of Earthquakes as a hazard. Vibrations themselves are not hazardous- it is the effect it has on buildings, etc. that poses risk. Risk comes from: Collapsing buildings, walls, bridges, falling furniture or objects, shattering glass windows and mirrors.

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EARTHQUAKES

EARTHQUAKES. by: Makenzie Kimber. What is an earthquake?. Earthquakes are when the tectonic plates in the earth rub together to cause shaking of the ground witch causes an earthquake. Earthquakes can happen all over the world including in the water. What causes earthquakes?.

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EARTHQUAKES

By Aaron L. EARTHQUAKES. What are Earthquakes?.

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Earthquakes

Earthquakes. If the Earth’s a rockin’…. Deformation Elastic deformation (rubber band)—object being deformed stretches building up potential energy Remove stress  energy released object returns to normal Everything has limits Stretching a rubber band until it breaks Rocks behave similarly.

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Earthquakes

Earthquakes. How they happen and what we can learn from them. What causes most earthquakes on Earth?. 1) Stress  pressure is applied to sections of rock in different directions 2) Strain  rocks deform from their original shape 3) Fracture  rocks break

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Earthquakes

Earthquakes. 1906 San Francisco Earthquake. What is an earthquake?. Quick release of energy caused by movement along faults which are cracks in the earth’s crust Energy is released in the form of seismic waves. 3 Types of Waves. P-Wave = P rimary wave S-Wave = S econdary wave

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Earthquakes

Earthquakes. Liz LaRosa http://www.middleschoolscience.com 2009. What is an earthquake?. Used to describe both sudden slip on a fault, and the resulting ground shaking and radiated seismic energy caused by the slip Caused by volcanic or magmatic activity,

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Earthquakes

Earthquakes. Chapter 11. Earthquake Causes- Sec 11-1. When force is applied to rocks, they bend and stretch, this is elastic deformation. When the force becomes too much the rock will break, this is its elastic limit.

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Earthquakes

Earthquakes. What is an earthquake?. Definition-An earthquake is a vibration within earth caused by the movement of rock. Focus and Epicenters. focus - point underground where rock movement occurs that triggers an earthquake epicenter - point on Earth's surface directly above the focus.

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Earthquakes

Earthquakes. 10.1 Forces Inside Earth. Causes of Earthquakes Passing the Elastic Limit Causes Faulting Earth’s rocks will bend and stretch up to a point After that point, rocks may break Faults – area where rocks move when elastic limit is passed Faults form along plate boundaries

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Earthquakes

Earthquakes. 1. What is the name of the instrument that records earthquake waves?. Seismograph Seismogram. Seismograph. 2. What type of plate motion is it when 2 plates move away from each other, causing weak, shallow earthquakes?. Divergent Convergent Transform. Divergent.

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Earthquakes

Earthquakes. Seismology – the study of Earthquakes Sudden release of pent-up energy in the Earth’s crust Strain energy – crustal rocks store stress until they fail or rupture Focus – precise spot BELOW the Earth’s surface where rupture occurs

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EARTHQUAKES

EARTHQUAKES. How Earthquakes Shape and Alter the Earth’s Surface. CLICK ON THE YELLOW CIRCLE TO GO TO THE NEXT SLIDE. Many things can change the appearance of Earth’s surface. Landforms can be created and altered by landslides, volcanoes, tsunamis, glaciers, erosion, wind, and earthquakes.

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