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SECTION EARTHQUAKES OCCUR ALONG FAULTS. 7.1 Reading Study Guide B BIG IDEA Earthquakes release stress that has built up in rocks. KEY CONCEPT Earthquakes occur along faults. Review Tectonic plates move over hotter, weaker rock in the asthenosphere. Take Notes Rocks move along faults. CHAPTER 7 Earthquakes 1. Fill in the magnet word diagrams for fault and stress, and earthquake. earthquakes 2. FAULT force Fill in the main idea and detail notes with information about how rocks move along faults. Main Ideas 1. Rocks move along faults. Detail Notes A. B. 2. Most faults are located along tectonic plate boundaries A. B. 3. STRESS Why do most earthquakes occur in the lithosphere? 86 THE CHANGING EARTH, CHAPTER 7, READING STUDY GUIDE B Copyright © by McDougal Littell, a division of Houghton Mifflin Company I. II. Faults are classified by how rocks move. 4. Fill in the main idea and detail notes with information about how faults are classified by how rocks move. Main Ideas Detail Notes 1. Faults are classified by how rocks move. A. B. C. Copyright © by McDougal Littell, a division of Houghton Mifflin Company 5. The sketch below shows that a normal fault has occurred. A diamond is buried in the rock. Draw arrows showing which way the diamond moved when the earthquake occurred. B. Reverse Faults 6. The sketch below shows that a reverse fault has occurred. Draw arrows to show the direction the ground moved when the earthquake occurred. C. Strike-Slip Faults 7. Fill in the chart below with information about faults. Main Direction of Stress Normal Fault Location (example) pulling apart Reverse Fault Strike-Slip Fault San Andreas Fault, California THE CHANGING EARTH, CHAPTER 7, READING STUDY GUIDE B 87 CHAPTER 7 Earthquakes A. Normal Faults