By Trinidad Arroyo. This gradual accumulation and release of stress and strain is now referred to as the "elastic rebound theory" of earthquakes. Most.

Slides:

Advertisements

Similar presentations

Advertisements

Friday, March 23 nd 1 Attendance 2 Go over Review Sheet Test Pass Back papers.

Vocabulary game by Rachel Schneider. Which is a force that acts on rock to change its shape or volume Tension Stress Shearing.

Earthquakes  Earthquakes:  the shaking and trembling that results from the movement of rock beneath Earth’s surface  See simulation below:  Terashake.

Ch – Forces Within Earth Essential Questions

Seismic waves and the shadow zone.  Sudden release of energy in the Earth’s crust and creates seismic waves. Occurs naturally or human induced.

Earthquakes Chapter 5. Earthquakes What causes and earthquake? 1._____________________________________ 2.Stress adds _________ to rock and ___________.

Earthquakes and Seismic Waves

What Are Earthquakes? 7-1 Key Concept:

Chapter 8 Earthquakes.

Ch 15 Earthquakes I. Earthquake – the shaking of Earth’s crust caused by a release of energy; vibrations made from rocks breaking.

Earthquakes Essential Question: How has earthquakes shaped our Earth?

EARTHQUAKES 2007 Japan quake.

8.2 Measuring Earthquakes

Chapter 11 Earthquakes Study Guide.

 By the end of this unit, you should be able to:  Discuss stress and strain and their roles in earthquakes  Know the differences between elastic and.

Earthquakes.  Earthquakes Result from Stress What is an Earthquake? –Definition :  Shaking of a crust by a release of energy – Results :  1. Explosions,

Earthquakes. What is an earthquake? Used to describe the sudden slip on a fault, and the resulting ground shaking and radiated seismic energy caused by.

“Earthquakes” I. Causes of Earthquakes: A. Why do earthquakes take place? 1. Rocks act the same way rubber bands work. 2. Applying stress to a rock will.

Inside Earth Chapter 2 Earthquakes 2.2 Earthquakes and Seismic Waves.

Section 19.1 Forces Within Earth

Earthquakes!. How does an earthquakes form?  Forces inside the earth put stress on the rocks near plate edges. Stress cause rocks to bend and stretch.

 stress -a force that acts on rock to change its shape or volume. 3 Types of Stress  tension -pulls on crust, stretching rock so it becomes thinner.

Aim: What are Earthquakes and their characteristics? I. Earthquakes – any vibrating, shaking, or rapid motion of Earth’s crust. A. Fault – zone of weakness.

Earthquakes. All earthquakes start beneath Earth’s surface. Focus of an earthquake: the point underground where rocks first begin to move Epicenter: the.

Earthquake Test Review Next Which type of stress stretches rock? Tension Compression Diversion Shearing.

 By the end of this unit, you should be able to:  Discuss stress and strain and their roles in earthquakes  Identify and describe the 3 types of faults.

Earthquakes. Earthquakes A natural vibration of the ground caused when the stress built up between tectonic plates is suddenly released. There are three.

Warm-Up Write a paragraph describing what it is like to be in an earthquake. If you have never been in one, MAKE IT UP! Write about what you THINK it would.

What is an earthquake? An earthquake is the shaking of the ground due to the movements of tectonic plates Earthquakes occur at different plate boundaries.

Chapter 19 Notes Earthquakes.

Aim: What are Earthquakes and their characteristics? I. Earthquakes – any vibrating, shaking, or rapid motion of Earth’s crust. A. Fault – zone of weakness.

QUIZ 10/21 1.What are Earthquakes? 2._____ is the deformation of a material caused by stress. 3.Describe tension stress. 4.Faulting causes rock to _________.

Guided Notes for Forces Within Earth

 These terms must be included in your foldable for home work ◦ Seismology ◦ Deformation ◦ Elastic rebound ◦ Seismic waves ◦ P waves ◦ S waves.

Chapter 19 - Earthquakes Forces within Earth.

Chapter 19 Pg. 526 Earthquakes.

Chapter 5 section 1 Objective: Determine where earthquakes come from and what causes them Identify different types of earthquakes Describe how earthquakes.

Earthquakes. What are earthquakes? The word earthquake means exactly what it says. An earthquake is when the ground shakes as a result of energy being.

1. What do seismologists use to determine when an earthquake started? A seismogram 2. How is the intensity of an earthquake determined? By the amount.

CH. 8: Earthquakes and Volcanoes 8.1: Earthquakes.

Earthquakes. Earthquakes Our Definition: a sudden shaking of the ground because of movement within the earth’s crust.

Earthquakes: Earth’s Way of Releasing Stress Chapter 8: Earthquakes.

EARTH SCIENCE Geology, the Environment and the Universe

Government Engineering College, Bhavnagar. Sub:- Geology & Geotechnics.

Earthquakes. Earthquakes Earthquakes are vibrations of the ground (violent shaking motions) created by the sudden release of energy accumulating in deformed.

 As you travel inside of Earth, the temperature _________________.

Earthquakes. earthquakes Earthquakes are natural vibrations of the ground caused by movement along gigantic fractures in Earth’s crust or by volcanic.

Earthquakes. Earthquakes Earthquakes are natural vibrations of the ground caused by movement along gigantic fractures in Earth’s crust or by volcanic.

What are earthquakes? Stresses in the crust cause rock to move suddenly The sudden movement causes vibrations that travel as waves inside the Earth and.

Lithosphere-Earthquakes Unit

Lithosphere-Earthquakes Unit

Earthquakes 2017.

4.1 Forces in Earth’s Crust

The average length of an earthquake is from 30 to 60 seconds.

Chapter 5.2 Earthquakes and seismic waves

Presentation transcript:

By Trinidad Arroyo

This gradual accumulation and release of stress and strain is now referred to as the "elastic rebound theory" of earthquakes. Most earthquakes are the result of the sudden elastic rebound of previously stored energy. If a stretched rubber band is broken or cut, elastic energy stored in the rubber band during the stretching will suddenly be released. Similarly, the crust of the earth can gradually store elastic stress that is released suddenly during an earthquake.

 Fault is a break in the Earth's crust caused by movement of rock. Also known as Tension, Compression, and shearing. Tension: Pulls apart Compression: Pushes together Shearing: slides apart in opposite directions

 The focus (more correctly termed the hypocenter) of an earthquake is the point in the earth where the earthquake rupture or fault movement actually occurred. The point on the surface directly a bove the hypocenter is known as the epicenter.

o The epicenter is the point on the earth's surface vertically above the focus (or the hypocenter), point in the crust where a seismic rupture begins

 A smaller earthquake following the main shock of a large earthquake

p waves are formed when matter in the rocks is pushed together by the earth's movement. they can travel through solids and liquids.  the P waves which is known as the (primary or compression) waves are the first to arrive at the recording station, p waves are formed when matter in the rocks is pushed together by the earth's movement. they can travel through solids and liquids.  P-waves are faster then S- waves

this waves are also called the shear waves. these waves are formed by the sideways motion of matter, it can only travel through solids.  the S waves which is known as the (secondary )waves are the second waves to arrive at the recording station. this waves are also called the shear waves. these waves are formed by the sideways motion of matter, it can only travel through solids.

The following table gives intensities that are typically observed at locations near the epicenter of earthquakes of different magnitudes. Magnitude Typical Maximum Modified Mercalli Intensity I II - III IV - V VI - VII VII - IX 7.0 and higher VIII or higher

The mercalli scale tells you how much damage the earthquake caused and the level of the intensity it is.