Chapter 8 & 9 May 14, 2019 admin What causes an earthquake? Earthquakes are caused by the vibration of Earth produced by the sudden release of energy. Describe the location of an epicenter and focus. What is the elastic Rebound hypothesis? Elastic rebound hypothesis is the release of built up energy. Describe aftershock and foreshocks Aftershocks are small quakes that come after a major earthquakes. Foreshocks are small quakes that come before major earthquake How are earthquakes mearsure Historically scientist have used two different types of measurement to describe the size of an earthquake intensity and magnitude. Who came up with the idea of continental drift Alfred Wegner What is pangaea Super continent When did pangaea form 500 MY What kind of evidence is presented to verify the idea of continental drift What is plate tectonics the uppermost mantle, along with overlying crust, behaves Related posts: chapter 8 and 9 Chapter 8 and 9 Review Natural Disasters- Exam 2 (Baker-Treloar) Chapter (Thompson, 1991). Chapter 2. Convergent plate boundaries