Earthquake Waves Learning Target: How does the energy from plate movement make earthquakes?

Slides:

Advertisements

Similar presentations

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

Advertisements

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

EARTHQUAKES & SEISMIC WAVES CHAPTER 6.2. W HAT IS AN EARTHQUAKE ? The shaking and trembling that results from the movement of rock beneath Earth’s surface.

Earthquakes and Seismic Waves

Earthquake Chapter 3 Lesson 4. Earthquake An Earthquake is a sudden movement in the Earth’s crust. The rock on both sides of a fault is pushed and pulled.

Energy Transformation in the form of Seismic Waves

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

Lab 2: The Interior of the Earth Key Q: What is the interior of the Earth like?

What is an Earthquake? Movement of the ground that occurs when rock inside the Earth pass their elastic limit, break suddenly, and experience elastic rebound.

Chapter 6 Earthquakes.

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.

INSIDE EARTH By Brooke E.. Introduction Earthquakes are movements or vibrations in the Earth. They are caused the release of stored energy in earth's.

Chapter 11 Earthquakes Study Guide.

Earthquakes and Seismic Waves  Caused by pressures generated through plate tectonics. Plates try to move but cannot. As pressure increases rock breaks.

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.

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.

EARTH’S INTERIOR. EARTH’S DYNAMIC SURFACE CHARACTERIZED BY CONTINUOUS CHANGE CHARACTERIZED BY CONTINUOUS CHANGE EARTHQUAKES SEEM TO HAPPEN IN SPECIFIC.

Types of Faults and seismic waves. What is a fault? A fault is a break in the rocks that make up the Earth’s crust, along which rocks on either side have.

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 Earthquakes and the Earth’s Structure Focus is the point within Earth where the earthquake starts. Epicenter is the location on the surface.

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 _________.

Earthquakes & Volcanoes

Rocks Move along Faults

  The location underground where an Earthquake begins is the focus.  The crust breaks at the focus, and the released energy pushes outward in all directions.

EARTHQUAKES. Rocks move along faults…  A fault is a fracture or break in the Earth’s lithosphere where blocks of rock move past each other.  Along some.

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

Students know how to identify transverse and longitudinal waves in mechanical media such as springs, ropes, and the Earth (seismic waves).

Chapter 12 Earthquakes.

Ch.5, Sec.1 - What Are Earthquakes?

Earthquakes Chapter 11.

Earthquakes!!!.

Earthquakes and More.

Earthquakes and Seismic Waves

Types of seismic waves L Waves

Earthquakes Unit 12.2.

Earthquakes Unit 12.2.

Earthquakes Waves and Faults.

Earthquakes EARTHQUAKE 101.

An earthquake is caused by a sudden slip on a fault

What Is Seismology? Seismology is the study of earthquakes and seismic waves that move through and around the earth. A seismologist is a scientist who.

why some earthquakes cause more damage than others?

EARTHQUAKES EARTHQUAKES- THE ROCKING AND ROLLING OF THE LITHOSPHERE

Earthquakes Chapter 12 Section 1

Earthquake Waves.

Name: _____________________ Date:_____________ Block: ____

Presentation transcript:

Earthquake Waves Learning Target: How does the energy from plate movement make earthquakes?

sudden movement Caused by sudden movement of rocks or a fracture in the crust (fault) Potential energy stored as stress Potential energy is stored as stress between plates or fault lines in the crust Kinetic energy seismic waves The released Kinetic energy creates vibrations throughout the earth- called seismic waves Energy travels outward in 3 directions 1) What is an earthquake?

2) Primary Waves (P waves) solids, liquids and gases can travel through solids, liquids and gases Fastest seismic waves, first detected Particles rock back and forth; squeezing and stretching matter Three Types of Seismic Waves

P Wave motion

3) Secondary Waves, S waves liquid Cannot travel through liquid layers of Earth Slower than P waves, arrive later Move side to side as they travel

S Wave motion

3) Surface Waves A. The first is called a Love wave. it moves the ground from side to side in a horizontal plane but at right angles to the direction of motion. The horizontal shaking of Love waves is particularly damaging to the foundations of structures.

B) The second type of surface wave is known as a Rayleigh wave. Like rolling ocean waves, Rayleigh waves wave move both vertically and horizontally in a vertical plane pointed in the direction in which the waves are travelling.

5) How are waves measured?

6) How are earthquakes measured? The size of an earthquake is determined by the amount of energy measured by amplitude of wave OR duration of earthquake Richter Scale Magnitude is measured by Richter Scale 10 times As numbers go up on the Richter Scale, the energy is 10 times stronger than the lower number!

Earthquake Wave Energy: 7) Energy of a wave is measured by the amplitude amplitude, the height the ground moves as the wave passes 8) What is happening to the amplitude of this wave?

9) Which magnitude would you first notice if an earthquake happened?

The path of P and S waves through Earth’s interior 10) Why don’t S waves travel through the core?

Plate boundary for Northwest 11) What type of plate boundary is between the North America Plate (land) and the Juan De Fuca Plate (ocean)? What is happening to the ocean plate?