Earthquakes An earthquake is the shaking or trembling of the earth caused by the _Sudden_ movement of the earth’s crust. They usually occur where rocks.

Slides:



Advertisements
Similar presentations
PLATE TECTONICS IN THE ZONE DAMAGE SEISMIC WAVES 1pt 1 pt 1 pt 1pt
Advertisements

Earthquakes.
What is an Earthquake? Chapter 8, Section 1.
Ch 6 Review Earthquakes.
Earthquakes release energy
Earth Science Fall  Earthquake- vibration of the earth’s crust Usually occur when rocks under stress suddenly shift along a fault.
Section 1: How and Where Earthquakes Happen
What Are Earthquakes? 7-1 Key Concept:
Earthquakes.
Chapter 10 Objectives 1. Discuss the elastic rebound theory. 2. Explain why earthquakes generally occur at plate boundaries. 3. Compare the 3 types of.
EARTHQUAKES Practice for 6 th grade quiz Ms. Cooper’s class Korematsu Elementary School.
Section WHAT IS AN EARTHQUAKE?  An earthquake is a movement of Earth’s crust caused by a release of energy WHAT CAUSES AN EARTHQUAKE?  Eruption.
Earthquakes Chapter 6 Section 1.
Section 1: How and Where Earthquakes Happen
Cause of Earthquakes What is an Earthquake?
 Earthquake: the shaking of the Earth’s crust caused by a release of energy.  Common cause: movement of the Earth’s plates.
What’s shaking??? S6E5. Students investigate how the Earth’s surface is formed.
Earthquake Ground shaking caused by the sudden and rapid movement of one block of rock slipping past another along fractures in Earth’s crust called FAULTS.
What is the Great Shake Out?
Earthquakes. What is an Earthquake? Earthquake—the vibration of Earth produced by the rapid release of energy – Most often caused by slippage along a.
More Stuff About Earthquakes. Faults Any stress on the plates can cause an earthquake if the elastic limit is reached. Each type of stress results in.
Earthquakes Chapter 6.1. Earthquakes & Plate Tectonics 1. Earthquakes are vibrations of the earth’s crust. a. Earthquakes occur when rocks under stress.
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.
8.1 Earthquakes.
Earthquakes Vibrations of the earths crust Occur when rocks shift suddenly under a fault When friction prevents rocks from moving the fault is said to.
Earthquake Vocabulary
Aim: What are Earthquakes and their characteristics? I. Earthquakes – any vibrating, shaking, or rapid motion of Earth’s crust. A. Fault – zone of weakness.
Chapter 12, Section 1 Chapter 10, Section 2 Objective 1
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 _________.
Section 6.1 Objectives 1. Discuss the elastic rebound theory.
EARTHQUAKES: WHY? AND HOW?. EARTHQUAKES Caused by plate tectonic stresses sudden movement or shaking of the Earth Located at plate boundaries Resulting.
Chapter 8 Section 1 Earthquakes: Vibration of Earth created when there is a rapid release of energy Caused by slippage along a fault Faults are fractures.
Chapter 6 Earthquakes Ch. 6.1 Earthquakes and Plate Tectonics.
Journal #60 What are earthquakes? Why do earthquakes occur?
Earthquakes Section 1 Section 1: How and Where Earthquakes Happen Preview Key Ideas Why Earthquakes Happen Elastic Deformation and Elastic Rebound Seismic.
Earthquakes.
Earthquakes. What’s an Earthquake? Earthquakes are movements of the ground that are caused by a sudden release of energy when along a fault move. Earthquakes.
EARTHQUAKES Shake, Rattle and Roll!
EARTHQUAKES Lesson 8.1. WHAT IS AN EARTHQUAKE  Each year more than 30,000 earthquakes occur worldwide that are strong to be felt.  An earthquake is.
Earthquakes A sudden shaking of earth as rocks break along a fault or plate boundary A sudden shaking of earth as rocks break along a fault or plate boundary.
Earthquakes. Earthquakes Our Definition: a sudden shaking of the ground because of movement within the earth’s crust.
Earthquakes. What are earthquakes? Vibration in the ground that result from movement along faults. Fault = a break in Earth’s lithosphere where one block.
Earthquakes!!!. I. Earthquakes: vibrations of the earth’s crust that is caused by the shifting of lithospheric plates.
8.1 What Is an Earthquake? 1) Focus is the point within Earth where the earthquake starts. 2) Epicenter is the location on the surface directly above the.
Ch 8 – Intro to Earthquakes Spring Earthquakes 8.1 What Is an Earthquake? Focus is the point within Earth where the earthquake starts. Epicenter.
Earthquakes Cornell Notes page 117.
Unit 5: Earthquakes Mr. Ross Brown.
Def: the vibrations caused by the breaking of rock within Earth
EARTHQUAKES .
Earthquakes A sudden movement of the Earth’s crust that causes vibrations of surrounding rock called seismic waves. Intro to Earthquakes.
Section 6.4: How and Where Earthquakes Happen
Earthquakes and Volcanoes
Earthquakes.
8.1 – What is an Earthquake?.
8.1 What Is an Earthquake?  Earthquake - vibration of Earth produced by rapid release of energy - Caused by motion of tectonic (lithospheric) plates.
Warm Up 09/26/2016 What are the three types of boundaries and explain the motion that occurs at each? What is produced at a Transform Boundary? What.
How and Where Earthquakes Happen
There are more than 30,000 earthquakes worldwide each year!
What are Earthquakes? The shaking or trembling caused by the sudden release of energy Usually associated with faulting or breaking of rocks Continuing.
Earthquakes.
What is an Earthquake? Pgs
SHAPING EARTH’S SURFACE
Earthquakes.
A numerical scale used to measure the magnitude or energy released
Earthquakes.
Earthquakes Review.
7th Grade Science Harris Intermediate
Earthquakes.
Earthquakes Chapter 12 Section 1
Earthquakes.
Presentation transcript:

Earthquakes An earthquake is the shaking or trembling of the earth caused by the _Sudden_ movement of the earth’s crust. They usually occur where rocks that have been fractured suddenly _Shift___. Most earthquakes occur along _Plate Boundaries_______ suddenshift PLATE BOUNDARIES

Elastic Rebound Theory Lithospheric rocks are “locked” which causes great _Stress___. This causes the rocks to _Fracture__ and the two sides of the rock “spring out and back” _Slippage__ causes a release in energy in the form of vibrations called: _Seismic Waves__. _Seismic Waves__.“stress”“fracture”Slippage Seismic Waves

When seismic waves cause other rocks to move (or the same rocks move again) it is called: AN AFTERSHOCK The place along a fault where the rock moves is called the: THE FOCUS

The earthquake is usually felt the strongest on the surface above the focus called the __Epicenter__ The process of using different locations to help pin point the epicenter is called Triangulation Epicenter

3 different earthquake depths 1. Shallow focus: within 70 km of earth’s 1. Shallow focus: within 70 km of earth’ssurface. 2. Intermediate focus: between 70km – 300km 3. Deep Focus: Occurs in subduction zones between km.

Which depth causes the most damage? Why?