The San Andreas Fault: 1. How many large earthquakes have occurred… The San Andreas Fault: 1. How many large earthquakes have occurred in

The San Andreas Fault: 1. How many large earthquakes have occurred… The San Andreas Fault: 1. How many large earthquakes have occurred in this region since records began? 2. When was the historic “Great San Francisco Earthquake?” 3. How big was this quake? 4. What did we know about the cause of earthquakes at this time? 5. How was the location of the fault determined? 6. How long is the San Andreas fault? 7. If looking directly across the fault, such as along the picket fence, which direction did the fence move relative to its original location? a. right c. depends on which side you are standing b. left d. no way to tell 8. Does all objects observed along the fault and shown in the video move the same way as the picket fence? a. Railroad tracks? b. Wallace creek? c. Sidewalk in Hollister? d. Bridge railings in Parkfield? 9. Wallace creek has a sharp bend where it crosses the San Andreas fault. a. How far has the fault moved to make this sharp bend?_____________ b. How long did it take to move this far?____________ c. What is the estimated rate of movement along the fault based on this evidence?   10. What is unique about Hollister? 11. What is unique about Parkfield? 12. The fault at Parkfield has a high concentration of what mineral?_________________ 13. What is special about this mineral? 14. Where else have we heard about this mineral? 15. Will Los Angeles fall off into the Pacific Ocean? What is a more realistic prediction? 16. If the fault is moving at 1 inch per year, about how far should it move in 100 years? 17. If the fault is moving but the surface rocks have not changed, what does that tell us about the surface rocks? 18. New experiments suggest that a big earthquake may be far worse than previously understood. Why? 19. How strong was the Northridge earthquake in 1994? How severe? 20. What is the chance of the next big earthquake? What impacts are predicted?    Earth Science Science Geology GL 105 Share QuestionEmailCopy link