WAVES CONSOLIDATED P-WAVE Consolidated sediments are sediments that are adhered together either because they are solid rock or because a small amount of water is holding the sediments together (like you would see in the wet sand of a sand castle). You represent consolidated sediment when you wrap your arms around the shoulders of the person next to you. Length of Line:. meters Travel Time for P-Wave: . sec 1. Calculate the speed of the P-wave in m/sec. Show your work! 2. Convert your answer into mi/hr. Show your work! (1607 m 1 mi) (3600 sec = 1 hr) CONSOLIDATED S-WAVE Length of Line:. meters (copy from above) Travel Time for S-Wave: sec 3. Calculate the speed of the S-wave in m/sec. Show your work! UNCONSOLIDATED P-WAVE Unconsolidated sediments are not adhered together in any way. They are loose, like the dry sand you would find in a sand dune. Each of you represents unconsolidated sediment when you hold your hands at your side and stand shoulder to shoulder. Length of Line: meters (copy from above) Travel Time for P-Wave: sec 5. Calculate the speed of the unconsolidated P-wave, converting your final answer into miles hour. (1607 meters = 1 mile; 3600 sec - 1 hr) per 6. Which sediment propagated the seismic wave faster, the consolidated or the unconsoli- dated sediment? UNCONSOLIDATED S-WAVE 7. Did your wave propagate (travel) through your line when you were pretending to be un- consolidated sediment? Applying what you know.... How fast would our earthquake be felt in Columbus? 8. Assume that Columbus is 35 miles away from Starkville. Using the rate you calculated in question # 2, how long would it take for the P-waves we created to be felt in Columbus? 9. Actual P-waves travel at an average rate of 3.9 mi/sec. How long would it take for an actual earthquake with an epicenter in Starkville to be felt in Columbus? (Remember, the distance is 35 miles.)

Q&A Education