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Earthquakes & Volcanoes Test Review Answers. The process is called triangulation. %PDF-1.4
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The, amount of time that passes between the Pwave arrival and the Swave arrival is. They use three seismographs in a process called triangulation to determine earthquake epicenters. 1,000 miles from the epicenter of an earthquake? (Listen to student ideas.) 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. Of the four Earthquakes Living Lab seismic areas, choose the "Chile" box, as shown in Figure 3. Do you agree with this alignment? If you draw a circle on a map around three different seismographs where the radius of each is the distance from that station to the earthquake, the intersection of those three circles is the epicenter. 0000001562 00000 n
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lag time. (Grades
You will receive your score and answers at the end. The farther away the epicenter is, the greater the difference . 0000002250 00000 n
Focal Depth. The seismometers are shown as green dots. Civil engineers, who design houses, apartment buildings, schools, skyscrapers, bridges, highways, tunnels, water treatment facilities, factories and other structures, may use this data to help them create safer structures that are less likely to sustain damage during earthquakes. Earthquakes and Volcanoes. You learned that seismologists determine the distance to the earthquake epicenter using the difference between S and P wave arrival times. 0000006984 00000 n
El trmino tambin puede hacer referencia al ttulo o nombre de alguien a quien se di, Practica II - De Psicologian membrete es aquello que se ubica en el sector superior de una pgina, mencionando el ttulo o el nombre de un individuo, una empresa, etc. Today, most seismologists no longer follow Richter's original methodology because it does not give reliable results when applied to stronger earthquakes and it was not designed to use data from earthquakes recorded at epicentral distances greater than ~600 km. n{6c&6NK*U;=9i%nF The wavelength and frequency of a wave are related to one another by the speed of travel of the wave, which depends on the type of wave and the medium through which it is passing. This worksheet focuses on using the p and s graph to find different variables. Students also investigate which structural designs are most likely to survive an earthquake. 0000005081 00000 n
Figure 2. Pwaves have the greatest velocity and reach the, seismic station first. 1. Activity 4: Locating an Earthquake Epicenter, The three basic types of seismic wave generated by an earthquake at its focus are P, waves, Swaves, and Surface waves. Then do the same for the S-wave. Practice with Triangulation: Locating an earthquake epicenter. Choose an answer and hit 'next'. Question 5 of 22 4.55/ 4.55 Points Questions 5 through 11 are based on Lab Exercise #2: Locating the Epicenter of an Earthquake. This page titled 13.4: Locating an Earthquake Epicenter is shared under a CC BY-SA license and was authored, remixed, and/or curated by Deline, Harris & Tefend (GALILEO Open Learning Materials) . Success is figuring out that the epicenter is just off the coast of Chile, where the three circles intersect. 74 Earthquake Activity: Locating the Epicenter and Time of Earthquake . trailer
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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. Practicing this technique, the students work several problems on a map of the US. triangulation: A method to determine exactly where an earthquake originates. How does the Mad Scientist. 0000001736 00000 n
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HS]o01j6R0iMm4U=wL8]BE< Note the differences in A single recording station can only calculate distance, but not direction; to cover all possibilities, a complete circle is drawn around that station. Students learn what causes earthquakes, how we measure and locate them, and their effects and consequences. If the lag time were measured at a location closer to the epicenter, The period of a wave is the time between two adj, How does the period of the P waves compare to t. Use data from seismograms to locate the epicenters of earthquakes. If your seismograph station is Was there an initial quake followed by smaller quakes? HS-PS4-1. cCV&0Lw1~c\4QA!{q:
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located 1,000 miles from the By looking at the time between the arrivals of the P- and S-waves, one can determine the distance to the earthquake from that station, with longer time intervals indicating longer distance. As you read and complete the activity, take notes so you can complete the. 0000005544 00000 n
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Md|d&:zhe)7I? EARTHQUAKES: Epicenter Determination and Seismic Waves First locate and mark the three seismic stations on the world map provided below. farther from the epicenter of an earthquake? 0000006538 00000 n
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A circle with a radius of the distance to the quake can be drawn. Through the online Earthquakes Living Lab, student pairs explore various types of seismic waves and the differences between shear waves and compressional waves. HtA1D41`s(GME$Ke*YdEOYf2-:r. PS: We do not share personal information or emails with anyone. 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