Name:________________________ Date:____________Period:________ ANTICIPATION GUIDE – FINDING AN EPICENTER: THE TORTOISE AND THE HARE, pp. 146-147 Before reading the article, check off all the statements with which you agree. After reading, check off all the statements with which you agree and rewrite the false statements to make them true. Before Reading After Reading __________ __________ 1. The point where the earthquake occurs deep within the earth is called the epicenter. ___________ __________ 2. The point on the earth’s surface directly above the place where the earthquake began is called the focus. ___________ ___________ 3. In order to find the epicenter of an earthquake, seismologists first use the arrival times of P- and S-waves as shown on several seismograms. ___________ ____________ 4. Second, seismologists plot those times on a special graph called a time-distance graph. ___________ ____________ 5. The difference between the arrival time of a Pwave and an S-wave at a seismology station decreases the further the seismograph station is from the epicenter. ____________ ___________ 6. With data from two seismograph stations, seismologists can narrow the epicenter down to the exact point. ____________ ___________ 7. The S-wave is constantly faster than the P-wave.