activity 4 locating an earthquake epicenter answer key

Three seismographs are needed. When seismic data is collected from at least three different locations, it can be used to determine the epicenter by where it intersects. Analyze and interpret data on natural hazards to forecast future catastrophic events and inform the development of technologies to mitigate their effects. 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. 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\newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\), status page at https://status.libretexts.org. 15 Bill Nye - Earthquakes Worksheet Key Earthquakes occur when the big pieces of earth's crust, called plates, move a little. Every earthquake is recorded on numerous seismographs located in different directions. Shear wave from earthquake, moving slower than primary waves, through solid material only. (Grades question 1 of 3. earthquake. 74 Earthquake Activity: Locating the Epicenter and Time of Earthquake . velocity, amplitude, and frequency of the Describe the process of triangulation to locate an epicenter. How might they use this information? Conclude the activity with a class discussion (and perhaps homework questions) to share ideas and answers, as described in the Assessment section. 0000000016 00000 n These distances are determined using a travel-time curve, which is a graph of Pand S-wave arrival times (see Figure 13.11). A circle with a radius of the distance to the quake can be drawn. Download. Triangulation to Locate an Earthquake By Earthquake Hazards Original Thumbnail Medium Detailed Description Triangulation can be used to locate an earthquake. The time The Richter scale was created in the 1930s to assign a single number to quantify the energy released during earthquakes. Students learn about the types of seismic waves produced by earthquakes and how they move through the Earth. 3. The lag time for any To accurately locate an earthquake epicenter, records from three. 2. For example, the western United States has earthquakes more frequently and on a larger scale than the eastern part of the country. There are two sets of data and maps to do this activity/ lab for than once. Explain the difference between S and P waves, and how their time interval is used to determine the epicenter location. Make an overhead copy of each of the handouts. The farther a station is from the Fill Locating The Epicenter Of An Earthquake Worksheet Answers, Edit online. The spot where those three circles intersect is the epicenter (Figure 13.12). The epicenter is the point directly above it at the surface of the Earth. between arrival of P and S waves is called If less precision is desired, precede M with a tilde, such as "M ~7" or "magnitude ~6.8.". Many updates and improvements! 0000006538 00000 n 0000004511 00000 n Scientists and engineers around the globe gather data through observation and experimentation and use it to describe and understand how the world works. 0000030968 00000 n Locating the epicenter of an earthquake worksheet answer key, locating the epicenter of an earthquake worksheet pdf, chapter 7 lab 1 locating epicenters answer key, how many seismographs are needed to locate the epicenter of an earthquake. 0000033429 00000 n HS]o01j6R0iMm4U=wL8]BE< Last modified July 18, 2012. American Geosciences Institute. P and Swaves are body waves and travelthrough the interior of the earth. travel 3,000 miles. Record your answer from Lab Exercise #2, Step 1. cCV&0Lw1~c\4QA!{q: N3\`Lccgb,x/if`WH3(\'q)Da'@ | endstream endobj 92 0 obj <>/Filter/FlateDecode/Index[57 4]/Length 20/Size 61/Type/XRef/W[1 1 1]>>stream All 100,000+ K-12 STEM standards covered in TeachEngineering are collected, maintained and packaged by the Achievement Standards Network (ASN), 0000078100 00000 n 0000004224 00000 n Section 8.1 What Is an Earthquake? [k0 |`2dGXGGGd00A(60P-e = F5n -f$ C To complete the activity, some prior . PDF. 0000004060 00000 n It's a logarithmic scale from 1 to 10 with each succeeding level representing 10 times as much energy as the last. Locating The Epicenter Of An Earthquake Worksheet Answers, Content Outline Earthquakes For Teaching - Mrs. Parsiola's Homepage, Earthquakes & Volcanoes Test Review Answers, Earthquake Facts & Worksheets | Mechanism, Impact, Events, Quiz & Worksheet - Causes Of Earthquakes - Study.com, 15 Bill Nye - Earthquakes Worksheet Key | PDF - Scribd, Bill Nye-The Science Guy * - Biloxi Public Schools, psc plus two level preliminary exam syllabus pdf 2023, first tuesday real estate principles exam answers, ies exam pattern for mechanical engineering, resultados examen practico dgt las palmas, exame de sangue precisa de quanto tempo de jejum, sslc question paper 2023 karnataka pdf with answers social science, examen de formacion civica y etica tercer grado secundaria, ctet exam date 2023 application form last date, why is it important to do self breast exams, quanto tempo depois de infectado pelo hiv aparece no exame. Seismograms 1) Identify the general term for waves released from an earthquake. Contact the teacher to find out the length of the class period, as well as how many copies of handouts and sets of materials you need to bring. The process is called triangulation. Success is figuring out that the estimated magnitude is 5.9. Notify the classroom teacher of technology needs (overhead projector). 9 - Most of these earthquakes are small tremors that cant be felt by people, but occasionally an earthquake occurs on a large magnitude that causes millions of dollars in property damage and kills hundreds to thousands of people. Then do the same for the S-wave. It takes S waves 14. 1. Entering the three maximum amplitudes generates a nomogram, a graphical device that simplifies the process of estimating magnitude from distance (determined earlier in the tutorial from the S-P interval process) and amplitude. 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. Multiply the difference by 8.4 to estimate the distance, in kilometers, from the seismograph station to the epicenter. Was there an initial quake followed by smaller quakes? 0000003855 00000 n The simulation renders three circles on a map and directs students to find the epicenter. 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. Where the 3 circles intersect is the approximate location to the epicenter of the earthquake. A.45 seconds B.50 seconds C.55 seconds D.65 seconds Answer Key: D Earthquakes and Seismic Waves Key Concepts . To abbreviate, use the symbol M (a capital M, plain text, no sub/superscripts) expressed to the nearest 0.1. What are those limits? Epicenter. aqmd. 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. 0000098546 00000 n Empirical evidence is required to differentiate between cause and correlation and make claims about specific causes and effects. 0000007783 00000 n These natural disasters may be mitigated, however, by insightful and creative engineering. Seismic stations detect earthquakes by the tracings made on seismographs. Subjects: Locating Earthquake Epicenter Lab Answer Key buysms de. Pwaves have the greatest velocity and reach theseismic station first. Earthquake Location 2 Using the skills that you acquired in the picking P and S arrivals, you can now locate an earthquake using real seismic records. The magnitude determination is based on seismic data. Note the differences in The hypocenter is the point within the earth where an earthquake rupture starts. and S waves to travel any distance up to 0000000856 00000 n Assess their understanding based on the thoroughness of their answers. Accessed December 11, 2013. http://earthquake.usgs.gov/aboutus/docs/020204mag_policy.php. seismogram. (Grades It shows the time required for P HTn {0,`K6}(J6]&Q^"!q57y_VQ9fp3/?Mc=KGsrrt:c\$Lh`4}>C>`qcSj0[YpZ_Su(322/N Z./$E )H %C[5ph[BUyGh7|!XPQiDjJ(|BNvylk+g;9G(#Aby>Jcf`XmnwtDD+;Z^I&Sb-4!7oi` L7 endstream endobj 78 0 obj <> endobj 79 0 obj <>stream Question: ACTIVITY 2B Locating an Earthquake Figure 5 shows seismograms for the same earthquake recorded at three locations-New York; Nome, Alaska; and Mexico City. 0000001533 00000 n Resources. approximate period of the surface waves in seconds? Moment magnitude scale. Learn more How Can I Locate the Earthquake Epicenter? It is called triangulation because a triangle has three sides, and it takes three seismographs to locate an earthquake. Learn from this informative and clear video.Brought you by award-winning Once each student has constructed his or her circle on the map, mark with an X, the epicenter of the earthquake. hbb2b`b``a I @ endstream endobj 62 0 obj <>/Metadata 55 0 R/Pages 51 0 R/StructTreeRoot 57 0 R/Type/Catalog/ViewerPreferences<>>> endobj 63 0 obj <>/Font<>>>/Fields[]>> endobj 64 0 obj <>/Font<>/ProcSet[/PDF/Text]>>/Rotate 0/TrimBox[0.0 0.0 612.0 792.0]/Type/Page>> endobj 65 0 obj <> endobj 66 0 obj <> endobj 67 0 obj <> endobj 68 0 obj <>stream 0 seismograph: An instrument that measures motions of the ground, including those of seismic waves generated by earthquakes. earthquake though). Cross), Give Me Liberty! So next, students compute the magnitude of this same earthquake by looking at the three simplified seismograms again, but this time selecting each's maximum S wave amplitude (height). www.teachengineering.org/activities/view/csm_findingepicenters_activity1, Search curriculum by Common Core standards, http://www.teachengineering.org/livinglabs/earthquakes/, Click to view other curriculum aligned to this Performance Expectation, Finding Epicenters and Measuring Magnitudes Worksheet, Finding Epicenters and Measuring Magnitudes (docx), Finding Epicenters and Measuring Magnitudes (pdf), Finding Epicenters and Measuring Magnitudes Example Answers (docx), Finding Epicenters and Measuring Magnitudes Example Answers (pdf), Earthquakes Living Lab: FAQs about P Waves, S Waves and More, Seismic Waves: How Earthquakes Move Through the Earth, Earthquakes Living Lab: Designing for Disaster, http://www.teachengineering.org/livinglabs/index.php, https://www.newpathonline.com/api_player/enus_54_6304/LXX/index.html. Zip. In this activity, students use an online simulationVirtual Earthquakethat is accessible through the Earthquakes Living Lab interface, to locate the epicenter of an earthquake by making simple measurement on three seismograms, recordings of an earthquake's seismic waves detected by instruments (seismographs) far away from the earthquake. endstream endobj startxref Considered best for measuring small earthquakes (3.5 M or less). For lower grades, just introduce the concepts of triangulation and the magnitude scale; a thorough understanding of P and S waves is not vital. How does the period of the P waves compare to the period of the surface waves? 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 HlRnQ?R\>BjK' How can you locate an earthquake's epicenter? Some places are more prone to earthquakes than others. The USGS Earthquake Hazards Program is part of the National Earthquake Hazards Reduction Program (NEHRP), established by Congress in 1977, and the USGS Advanced National Seismic System (ANSS) was established by Congress as a NEHRP facility. How is the magnitude of an earthquake determined? %PDF-1.3 % 4. Students first triangulate the location of an earthquake's epicenter, then calculate its magnitude. As discussed earlier in this lesson, this method of determining the epicenter of an . Describe what the "magnitude" of an earthquake is. 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. [N'. 83 0 obj <> endobj Students learn what causes earthquakes, how we measure and locate them, and their effects and consequences. 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. Facility Name Busine Child ren Information Child Name C. Child Social Security Number Type of Case being filed - Check only one category. Refer to the data table and use the difference in arrival times to determine the distance to the earthquake epicenter for Station 2. Choose an answer and hit 'next'. If a quake is far from the seismograph, the P-waves arrive long before the S-waves. 12), Seek, evaluate, and use a variety of specialized resources available from libraries, the Internet, and the community to find scientific information on Earth's history 0000008845 00000 n distance from transducer to the focal point. Thanks for your feedback! Use of the TeachEngineering digital library and this website constitutes acceptance of our Terms of Use and Privacy Policy. Details. Focus (aka Hypocenter) is the location in the Earth where the earthquake starts. In a concluding class discussion, have groups share their ideas about engineering and one new thing they learned about earthquakes. This investigation is considered generally safe to do with students. Figure 13.10). lag time. different types of seismic waves. Run through the investigation yourself and record the data, just to see how long it takes. 107 0 obj <>stream Nov 2, 2020 Triangulation is used to determine the location of an earthquake. Every year, earthquakes cause death and destruction worldwide. Though the distance to the epicenter can be determined using a travel-time graph, the direction cannot be told. 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. The travel-time graph (Grades 0000115324 00000 n earthquake - shaking and vibration of Earth's surface. xb``d``Id`a`Ab@_ :iWGi>|q` longer or shorter). Graphs, charts, and images can be used to identify patterns in data. In this activity, the epicenter of the earthquake is in the center of Los Angeles, CA. Using online resources and simulations available through the Earthquakes Living Lab, students explore the consequences of subsurface ground type and building height on seismic d Seismographs are measuring devices designed by engineers and used by researchers to determine the locations and magnitudes of earthquakes. 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. 1. The three seismograms in this activity are unfi ltered station records from a single event that occurred on August 1, 1999. All rights reserved. EARTHQUAKES: Epicenter Determination and Seismic Waves First locate and mark the three seismic stations on the world map provided below. Also commonly termed the focus. Have students click on the Earthquakes Living Lab hyperlink in the top left in the earthquakes section. Finally, the location of the 3 seismographs are placed on a map and the distance to the epicenter is used to draw a circle with an origin at each seismograph and a radius equal to the distance to the epicenter as taken from each seismogram. [*aiLG?+J\QI86~}ooRrr!pm}dk@dBbZPMZlC4C\9^ SM.R\!H+$|+DUzt^w{" %&{KXjT'9yzT^UFe:+f(`PU_9%EW@\)?i qp!\G Z endstream endobj 75 0 obj <>stream 0000106240 00000 n How are S and P waves used to determine how far away epicenters are? You learned that seismologists determine the distance to the earthquake epicenter using the difference between S and P wave arrival times. 2. Use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media. Point on Earth's surface directly above an earthquake's focus. Free K-12 standards-aligned STEM curriculum for educators everywhere. atrial depolarization. 5. focus - the point within Earth where an earthquake originates. Therefore, the lag Geology Labs On-Line, Department of Geological Sciences, California State University, Los Angeles, CA. Apr 8, 2020 One seismogram indicates the distance to the epicenter. The uses of technologies and any limitations on their use are driven by individual or societal needs, desires, and values; by the findings of scientific research; and by differences in such factors as climate, natural resources, and economic conditions. Construct an oral and written argument supported by empirical evidence and scientific reasoning to support or refute an explanation or a model for a phenomenon or a solution to a problem. 0 500 1000 1500 2000 2500 3000 Subject Areas: Read through the sections What Is Seismology and What Are Seismic Waves?, Where Do Earthquakes Happen?, and Why Do Earthquakes Happen? to answer the following questions: What is the difference between S and P waves? determine the epicenter using the S P (S minus P) method. Sixty-seven people lost their lives, and property damage was estimated at $6 billion. What is the epicenter: A point on the Earth's surface that is directly above the place where the underground forces of an earthquake originate. The Earthquakes Living Lab gives students the chance to track earthquakes across the planet and examine where, why and how they are occurring. Do you agree with this alignment? First locate and mark the three seismic stations on the world map provided below. Focal Depth. (Grades 6 - 8). HTAn ' endstream endobj 69 0 obj <> endobj 70 0 obj [85 0 R] endobj 71 0 obj <> endobj 72 0 obj <> endobj 73 0 obj <>stream to the lag time measured at this location? Alignment agreement: U.S. Geological Survey, U.S. Department of the Interior. 0000005544 00000 n Locating an Epicenter through Triangulation of Seismic Data- Remote/Hybrid/Live. Privacy Policy, Seismograms from seismic stations in Fresno, CA, Phoenix, AZ, and Las Vegas, NV, A modified travel time curve for S-P wave, A Modified Travel Time Curve for S-P Wave. 3000 miles. (Source: USGS, Wikipedia). https://people.wou.edu/~taylors/gs104/lab5key.pdf Locating Earthquake Epicenters | CK-12 Foundation Apr 8, 2020 . Thanks for your feedback! Expert Answer. $8.25. As the drum rotated, the 1. The magnitude is the logarithm of the amplitude of the ground wave. The living lab presents earthquake information through a focus on four active seismic areas and historic earthquakes in those areas. To make a magnitude determination, two measurements are needed: the S-P interval (already determined earlier in the tutorial) and the maximum amplitude of the seismic waves. The spot where those three circles intersect is the epicenter (Figure 13.12). After reading about earthquakes, open a new window to an Earthquake Simulator at, Follow the simulation instructions. 0000001736 00000 n (i. Locating an Epicenter Activity - Arkansas Geological Survey 4. fault - a fracture in Earth's crust where the rocks on either side have moved. 0000002840 00000 n Answer Key: Lab 5 Earthquakes - Find People, Locating Earthquake Epicenters | CK-12 Foundation, Earthquake Station - Regents Earth Science, Locating Earthquakes Teaching Resources - TPT, Locating An Epicenter Teaching Resources - TPT, How To Find The Epicenter Of An Earthquake - YouTube, Locating The Epicenter Of An Earthquake Worksheet, Locating An Earthquake Epicenter Worksheet Answers, glencoe responsible driving chapter 2 answers, pnp neuro psychiatric exam sample questions, quais tipos de drogas sao detectadas no exame toxicologico, centro de apoio diagnostico resultado de exames, locating earthquake epicenter worksheet answer key, exame pcr covid para viagem internacional, quantos dias pra sair o resultado do exame de covid, du ma political science entrance exam syllabus 2023, earth and life science grade 11 module 4 genetic engineering answer key, go math grade 5 chapter 11 lesson 11.9 answer key, civil service examination in the philippines. Pwaves have the greatest velocity and reach the, seismic station first. HtA1D41`s(GME$Ke*YdEOYf2-:r. Millions of people witnessed the motion of the earthquake on television. Practice with Triangulation: Locating an earthquake epicenter. 1,000 miles from the epicenter of an earthquake? Legal. 0000001893 00000 n To locate the epicenter of the earthquake, seismologists use the . Get the inside scoop on all things TeachEngineering such as new site features, curriculum updates, video releases, and more by signing up for our newsletter! 0000002544 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. During an earthquake, seismic waves are sent all over the globe. activity illustrates how the epicenter of an earthquake is found. Students learn how engineers build shake tables that simulate the ground motions of the Earth caused by seismic waves in order to test the seismic performance of buildings. 0000079769 00000 n ?t?s=Yt '_( endstream endobj 76 0 obj <>stream Describe the logarithmic nature of the earthquake magnitude scale. long will it take, to the nearest 0. minutes, for the first P waves to travel from the epicenter to your station? To do this, have the students use, Find the epicenter of the earthquake on the map (. Earthquakes occur along faults, which are cracks in the Earths crust that build tension. Yw8SxGk}X3kfTfW& gk`41#'uf7"G\fsN4^8jC7[+%`qFLFKpFc Activity 4 Locating An Earthquake Epicenter Answers: Fill Out & Sign . At least 3 earthquake recording stations are required to find the location of the earthquake epicenter. Show students some of the numerous online animations comparing the movements of P and S waves. Quick Tips. A minimum of three seismic stations is necessary to locate an epicenter. 0000009174 00000 n 1. 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. 0000001777 00000 n Direct students to finish the activity by completing the. The distance is in kilometers. P and S arrivals, you can now locate an earthquake your answers below. Focus. pen recorded the arrival of P, S, and surface HS-PS4-1. hWmo9+[+UH EkNB|6YiaVJ=cRh7{T1R,5LI1$K=s)XR&87@&$LTPLutlcyNuzjf--\?qaXZM&HM.Eg"HnTqSWqN0&~2kf0 Md|d&:zhe)7I? Earthquakes and Volcanoes. 5 4. 13 4 locating an earthquake epicenter geosciences libretexts . How does the Mad Scientist. 0000002383 00000 n Figure 8. In the ASN, standards are hierarchically structured: first by source; e.g., by state; within source by type; e.g., science or mathematics; 0000053998 00000 n Adjust the timing to the class period, remembering that you will need time to introduce the investigation, clean up afterwards, and re-set up for the next class (if you are working with more than one class). 12), Evaluate ways that technology can impact individuals, society, and the environment. Epicenter is the location on the surface of the Earth directly above where the earthquake starts.

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