Chapter 8 earthquakes and earth's interior pdf

Start studying earthquakes and earths interior chapter 8. Faults are fractures in earth where movement has occurred. Earthquakes and earths interior practice exam exam instructions. At these old plate boundaries in the middle of the plates, earthquakes can occur. Earthquakes and the earths interior tulane university. Reading strategy sequencing after you read, complete the sequence of layers in earths interior. Earthquakes and earths interior chapter 8 flashcards quizlet. Chapter 1 an introduction to geology chapter 2 plate tectonics. When the pressure is released, an earthquake occurs.

Earthquakes general features vibration of earth produced by the rapid release of energy associated with movements along faults explained by the plate tectonics theory. Rupture area slip zone is the whole area of fault that. Chapter 8 earthquakes and earths interior summary 8. The composition of the material through which p waves and s waves travel affects the speed and direction of the waves. Broken windows collapse of buildings fires, as seen in the 1906 san francisco earthquake tsunamis, as seen in the 2004 sumatran earthquake landslides destabilization of the base of some buildings which may lead. Choose from 390 different sets of earthquakes earth s interior chapter 8 guide flashcards on quizlet.

The rupture front travels at roughly 3 kilometers per second for earthquakes in the crust. For example, p waves travel fastest through materials that are very. Learn earthquakes earths interior chapter 8 guide with free interactive flashcards. Pdf this chapter outlines some of the understanding of the earths interior derived from. Broken windows collapse of buildings fires, as seen in the 1906 san francisco earthquake tsunamis, as seen in the 2004 sumatran earthquake landslides destabilization of the base of some buildings which may. Vibration of earth produced by the rapid release of energy 2.

Seismometers are instruments used to record seismic waves. Explain how earthquakes result from the buildup of energy in rocks describe how compression, tension, and shear forces make rocks move along faults distinguish among normal, reverse, an strikeslip faults. Chapter 6 earthquakes sdsu college of sciences san diego. Learn earthquakes earth s interior chapter 8 guide with free interactive flashcards. Vocabulary earthquake focus epicenter fault elastic rebound hypothesis aftershock foreshock each year, more than 30,000 earthquakes occur worldwide that are strong enough to be felt. The quake flattened hillsides, knocked out communications, blocked roads, destroyed most hospitals, and clogged haitis main seaport with debris. Global maps show tomographic scans of seismic wave velocities in the upper mantle, a in map view at depths of 100, 300, and 500 km 60, 190, and 310 miles, and b in cross section to a depth of 660 km 410 miles directly beneath the two lines indicated, one that girdles earth. Reading strategy building vocabulary as you read this section, write a definition for each vocabulary term in your own words.

The movement of the plates causes pressure to build up. Earthquakes and the earths interior earthquakes earthquakes occur when energy stored in elastically strained rocks is suddenly released. Circle the letter of the approximate number of major earthquakes that take place each year. Graph of earthquake compressional wave velocity and density in the earth. For more information on this reading strategy, see the. Earthquakes and earth s interior practice exam exam instructions. Chapter 8 earthquakes section 1 what are earthquakes. Earthquakes and earths interior235 figure 16 earths magnetic field movements in earths liquid outer core produce the planets magnetic.

Chapter 8 216232 earthquakes and earths interior earth. Seismic waves are waves of energy that travel through the earths layers, and are a result of earthquakes. The boundary called the separates the crust from the mantle. Explain earthquakes as natural hazards and list other destructive phenomena related to earthquakes. An earthquake is the vibration of earth produced by the rapid release of energy. Study 15 chapter 8 216232 earthquakes and earths interior flashcards from matt p. Continental oceanic crust crust depth km 100 200 300 660 lithosphere sphere of rock asthenosphere weak sphere 400 upper. Chapter 8 earthquakes and earths interior this section describes earths layers and their composition. Earthquakes are caused by slippage along a break in the lithosphere, called a fault. An earthquake is the vibration of earth produced by the rapid release of energy within the lithosphere.

Earthquakes and earths interior after reading and studying ch. Measuring earthquakes seismology is the study of earthquake waves, or seismic waves. A scientific revolution unfolds chapter 3 matter and minerals chapter 4 igneous rocks chapter 5 volcanoes and other igneous activity chapter 6 weathering and soil chapter 7 sedimentary rocks chapter 8 metamorphism and metamorphic rocks chapter 9 geologic time chapter 10 crustal deformation chapter 11 earthquakes chapter 12 earths. Sometimes lithospheric plates have ancient plate boundaries. As you read, define each term for this section in your own words. Compare and contrast the properties of different types of seismic waves.

P waves primary compressional s waves secondary transverse bill nye. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Ch 8earthquakes chapter 8 earthquakes and earths interior. Geologists learn about earths interior by drilling holes. Earth s interior worksheet pearson education answers.

Earthquakes and the earth s interior earthquakes earthquakes occur when energy stored in elastically strained rocks is suddenly released. Primary and secondary waves travel in all directions from the focus and can travel through. The duality of the normal modes and rays is explored in chapter 8. Evidence on the structure and composition of the earths interior. This section explains what earthquakes and faults are and what causes earthquakes. Compare and contrast the epicenter and focus of an earthquake 2. Reading strategy outlining as you read, fill in the outline with the important ideas in this section. Microsoft powerpoint chapter 8 earthquakes and earths interior. From analyzing many earthquakes in a given region seismologists know. Chapter 8 earthquakes and earth s interior chapter 8. Chapter 8 earthquakes section 2 earthquake measurement. Google maps 5150 school road new milford, pa 18834 phone.

Effectsimpacts of earthquakes there are many effects of earthquakes including, but not limited to the following. This section discusses types of seismic waves and how earthquakes are. To evaluate and reinforce your understanding of any or all of the key concepts, look at the selection bar on the left side of this page. The epicenter is the point on earths surface that lies vertically above the focus of an earthquake. Chapter 8 earthquakes and earths interior section 1 what is an earthquake. As a result, a compass needle points to one of the magnetic poles. Describe earth s interior structure and composition.

Focus is the point within earth where the earthquake starts. Chapter 8 part 2 earthquakes and the earths interior a violent pulse. Chapter 6 earthquakes practice exam and study guide. Lecture outlines powerpoint chapter 8 tarbucklutgens. Reid of the johns hopkins university proposed the elastic rebound theory to explain how energy is released. Choose from 390 different sets of earthquakes earths interior chapter 8 guide flashcards on quizlet. Body waves travel through the interior of the earth along paths controlled by the. Geologists learn about earth s interior by drilling holes. Epicenter is the location on the surface directly above the focus. For more information on this reading strategy, see the reading and study skills in the skills and reference handbook at the end of your. Earthquakes are often caused by slippage along a break in the lithosphere, called a fault.

Shaking or trembling of ground sudden release of energy involves faulting, volcanism, or explosions fig. Define earthquake including key terms used to describe the causes and results. Fault slippage begins at the focus and spreads across a fault surface in a rupture front. The plate boundaries should be drawn along the areas with large numbers of earthquakes. Figure 14 seismic rays change direction because as pressure increases with depth, elastic properties of rocks change. Indentify the cause of earthquakes using the elastic rebound hypothesis. Chapter 8 earthquakes and earth s interior section 8. This release of energy causes intense ground shaking in the area near the source of the earthquake and sends waves of elastic energy, called seismic waves, throughout the earth. Chapter 8 earthquakes and earths interior section 8.

The difference in velocities of p waves and s waves show the distance between seismograph and. Seismic waves travel outward from the site of initial rupture along a fault in a. The earthquakes and earths interior chapter of this prentice hall earth science textbook companion course helps students learn essential earth science lessons of earthquakes and the earths interior. The disaster was made even worse by strong aftershocks that rumbled for days after the main. Physical science reading and study workbook chapter 8 89. Reading strategy page 684 building vocabulary copy the table on a separate sheet of paper and add more rows as needed. Use the green headings as the main topics and the blue headings as subtopics. P wave and the s wave in seconds and multiply by 8 kilometers per second.