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xb``d``Id`a`Ab@_ :iWGi>|q` (Figure 3):. These distances are determined using a travel-time curve, which is a graph of Pand S-wave arrival times (see Figure 13.11). use slide 6 and answer key slide 7 how can i locate the earthquake epicenter michigan web the epicenter of the earthquake is somewhere on the edge of that circle do the As discussed earlier in this lesson, this method of determining the epicenter of an . To abbreviate, use the symbol M (a capital M, plain text, no sub/superscripts) expressed to the nearest 0.1. We have answers to the most popular questions from our customers. Thus technology use varies from region to region and over time. Use of the TeachEngineering digital library and this website constitutes acceptance of our Terms of Use and Privacy Policy. Explain the difference between S and P waves, and how their time interval is used to determine the epicenter location. P and Swaves are body waves and travelthrough the interior of the earth. The spot where those three circles intersect is the epicenter (Figure 13.12). Please answer the following questions using the earthquake video shake, shake, shake. The instrument detects and documents the intensity, direction and duration of ground vibrations, which are used to determine the epicenters and strength/magnitudes of earthquakes or other seismic events. Objective Use data from seismograms to locate the epicenters of earthquakes. How does the Mad Scientist. The point of origin of an earthquake is called its focus and the point on the Earth's surface directly above the focus is the epicenter. 83 0 obj
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Richter scale Method of earthquake measurement based on the amplitude of seismic . Triangulation is required to determine exactly where it happened. Tracings made at three separate seismic stations are needed to locate an earthquake epicenter. (Grades
One seismogram indicates the distance to the epicenter. The farther away the epicenter is, the greater the difference . Use Figure 4.5 and the travel-time graph in Figure 4.4 to determine the distance between each station and THREE SEISMOGRAMS the epicenter. follow our easy steps to get your lab activity locating epicenters answer key well prepared rapidly choose the template in the library enter all necessary information in the required llable areas the The USGS now uses the MMS to estimate magnitudes for all modern large earthquakes. Earth and Space, Physical Science, A process called triangulation uses seismic data from three locations to identify the epicenter of an earthquake.copyrightCopyright USGS http://earthquake.usgs.gov/learn/kids/eqscience.php. Of the four Earthquakes Living Lab seismic areas, choose the "Chile" box, as shown in Figure 3. consider a seismograph stationed 3, Locating An Earthquake Epicenter Lab Answers Thank you for reading Locating An Earthquake Epicenter Lab Answers . Every earthquake is recorded on numerous seismographs located in different directions. It shows the time required for P 0000008088 00000 n
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12), Analyze and interpret data about natural hazards using direct and indirect evidence
What did it feel like? 13. trailer
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This investigation is considered generally safe to do with students. The distance to the earthquake epicenter is then determined using the "Earthquake P-Wave and S-Wave Travel Time" graph. Finding the Epicenter Determine the epicenter distance from three different seismographs. How are S and P waves used to determine how far away epicenters are? What types of engineers might use this data the most? Civilization and its Discontents (Sigmund Freud), Educational Research: Competencies for Analysis and Applications (Gay L. R.; Mills Geoffrey E.; Airasian Peter W.), Brunner and Suddarth's Textbook of Medical-Surgical Nursing (Janice L. Hinkle; Kerry H. Cheever), Psychology (David G. Myers; C. Nathan DeWall), The Methodology of the Social Sciences (Max Weber), Business Law: Text and Cases (Kenneth W. Clarkson; Roger LeRoy Miller; Frank B. Figure 2. The magnitude is the logarithm of the amplitude of the ground wave. 100 km 4.1 km/s 24.4 s; Finding the epicenter (continued) data table analyze and conclude answer the following questions on a separate sheet of paper. 0000006538 00000 n
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The western U.S. has more faults than the eastern U.S., and therefore the western U.S. has more earthquakes. (Grades 9 - 12). trailer
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CH 02 HW - Chapter 2 physics homework for Mastering, Leadership class , week 3 executive summary, I am doing my essay on the Ted Talk titaled How One Photo Captured a Humanitie Crisis https, School-Plan - School Plan of San Juan Integrated School, SEC-502-RS-Dispositions Self-Assessment Survey T3 (1), Techniques DE Separation ET Analyse EN Biochimi 1, Use a travel-time graph to convert lag time into distance. Have students click on the Earthquakes Living Lab hyperlink in the top left in the earthquakes section. The arrival of seismic waves will be recognized by an increase in amplitude look for a pattern change as lines get taller and more closely spaced (ex. Introduction: Before student pairs look at the Earthquakes Living Lab, direct them to complete the Engage section of the Finding Epicenters and Measuring Magnitudes Worksheet, which asks them to apply any prior knowledge and/or speculate as to what the Richter magnitude scale is and what an epicenter is.
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