1. To what extent can earthquakes be predicted?
3. What can a trench dug across an active fault show about past fault movement?
4. What is a seismic gap, and what is its significance in determining future fault activity?
5. What information indicates the probable magnitude of future earthquakes along a specific fault segment?
8. What kinds of structural materials make walls dangerously weak during an earthquake?
9. What type of wall strengthening is commonly used to prevent a building from lateral collapse during an earthquake?