The magnitude determination is based on seismic data. Figure 13.10). When the tension becomes too great, the fault slips, causing an earthquake. Do limits exist on what science can predict? If less precision is desired, precede M with a tilde, such as "M ~7" or "magnitude ~6.8.". 0000005544 00000 n Finding the Epicenter Determine the epicenter distance from three different seismographs. Step 1: ans- d) 65 seconds Ste . 0000004060 00000 n 0000006538 00000 n 0000003855 00000 n Locating Earthquake Epicenters ( Read ) | Earth Science PDF Locating An Earthquake Epicenter Lab Answers - Full PDF Direct students to finish the activity by completing the. atrial depolarization. The epicenter of an earthquake can be found using the difference between the arrival of the Primary and Secondary waves. A circle with a radius of the distance to the quake can be drawn. Using the real-world data in the living lab enables students and teachers to practice analyzing data to solve problems and answer questions, in much the same way that scientists and engineers do every day. It is called triangulation because a triangle has three sides, and it takes three seismographs to locate an earthquake. Sharing Information/Thinking Ahead: In the Evaluate section of the worksheet, student pairs are asked to compose answers to two questionswhether they think seismology is a reliable science and ways seismic data is useful for engineers. waves from a distant earthquake. 0000008845 00000 n 0000002544 00000 n Material is sheared side to side, perpendicular to the direction of wave propagation. Activity 4 Locating An Earthquake Epicenter Answers: Fill Out & Sign . Today we will be using a traveltime graph, where the vertical separation between, the P and S curves is equal to the difference in the arrival times between the Pwave, and Swave.

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