What did it feel like? Finding the epicenter worksheet answer key. 0000003855 00000 n Sixty-seven people lost their lives, and property damage was estimated at $6 billion. Take a few minutes to read the information on the left side of this page for the 2010 earthquake off the coast of central Chile. Click on New Document and select the file importing option: upload Locating the epicenter of an earthquake worksheet answer key from your device, the cloud, or a protected link. The farther a station is from the Epicenter is the location on the surface of the Earth directly above where the earthquake starts. epicenter, the longer the lag time measured Please answer the following questions using the earthquake video - shake, shake, shake. Locating_an_epicenter_activity-MB.pdf - Activity 4: Locating an inch = 500 km. How does distance from the epicenter affect the magnitude (height) of the seismograph reading? Thanks for your feedback! The time As the drum rotated, the First, determine the P-wave arrival, and read down to the bottom of the seismogram to note at what time (usually marked in seconds) that the P-wave arrived. One seismogram indicates the distance to the epicenter. Notify the classroom teacher of technology needs (overhead projector). Tracings made at three separate seismic stations are needed to locate an earthquake epicenter. Epicenter Location on Earth's surface directly above the focus of the earthquake 5. miles from the epicenter of an ?t?s=Yt '_( endstream endobj 76 0 obj <>stream Therefore, the lag Locating Earthquake Epicenters ( Read ) | Earth Science 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. Activity4:LocatinganEarthquakeEpicenter Objectives:Ifyoucompletealltheproblems,youshouldbeableto: Identif How does the lag time change as you get farther and (Grades trailer <<320C1F98F8FF4795B5CCB8D9E9A0B99B>]/Prev 812054/XRefStm 1396>> startxref 0 %%EOF 93 0 obj <>stream 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 For example, the western United States has earthquakes more frequently and on a larger scale than the eastern part of the country. minutes? /g$=#!$EbBbhD!,x so^6Uc})\uJs=fyY}j'|YjTm8B_[}*Ovm\[J'.mu?lQg,wzJM^X&P w>-T%*h%J4 yB@VPmP]@D------------,2dfY$"A!ANAASi)4$dniiiinH% Gxt5DJ) )9RRr$II'y ??O's^3@[{*{VT?nsNS!ilq]mFO?? In this activity, students use an online simulationVirtual Earthquakethat is accessible through the Earthquakes Living Lab interface, to locate the epicenter of an earthquake by making simple measurement on three seismograms, recordings of an earthquake's seismic waves detected by instruments (seismographs) far away from the earthquake. Locating Earthquake Epicenter Teaching Resources | TPT (Grades 9 - 12). Looking at the nomogram, students click on each location data point to see where the three lines intersect to read the estimated magnitude. Free K-12 standards-aligned STEM curriculum for educators everywhere. %%EOF 1) Identify the general term for waves released from an earthquake. Seismograms Nov 2, 2020 Triangulation is used to determine the location of an earthquake. The American Geosciences Institute represents and serves the geoscience community by providing collaborative leadership and information to connect Earth, science, and people. Based on your answers to the previous question, what is the lag time for locations that are Engineers first determine where earthquakes are likely to occur, and how severe they are likely to be. [k0 |`2dGXGGGd00A(60P-e = F5n -f$ C In Figure 13.9, there is an example seismogram from a station that includes a minor earthquake. The travel-time graph 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. Scientists use triangulation to find the epicenter of an earthquake. X!.43p2t!}SLx-3z.KN4X+H\+vk? Subjects: epicenter of an earthquake, how In Figure 13.9, there is an example seismogram from a station that includes a minor earthquake. Hand out the worksheets to the groups and direct them to read through the instructions. Explains how to find an earthquake epicenter using at least three seismograph stations. Activity: Locating an Earthquake Epicenter Lecture 3 Damage from the earthquake was widespread, but the actual location of the earthquake (the epicenter) 0000004511 00000 n Finding the epicenter of an Earthquake by Ah - Ha Lessons 5.0 (1) $3.00 PDF Activity This lesson teaches the student the process scientists use to locate the epicenter of an EQ. Success is figuring out that the estimated magnitude is 5.9. 0000002840 00000 n When an earthquake strikes, P waves arrive at a seismograph rst and S waves next. travel 3,000 miles. How can you locate an earthquake's epicenter? 0000001736 00000 n For purposes of this activity, the least complicated and probably most accurate approach is to just use the term "magnitude," without needing to say "on the Richter scale" or "on the moment magnitude scale." It takes S waves 14. Must engineers be content with mitigating disasters, instead of preventing them? 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. What data is used to determine magnitude? U.S. Geological Survey, U.S. Department of the Interior. approximate period of the surface waves in seconds? Edit your locating an earthquake epicenter worksheet answers online. pen recorded the arrival of P, S, and surface Draw your signature, type it, upload its image, or use your mobile device as a signature pad. Students first triangulate the location of an earthquake's epicenter, then calculate its magnitude. HS-PS4-1. 2. %PDF-1.5 % 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. Activity 4 Locating An Earthquake Epicenter Answers: Fill Out & Sign . within type by subtype, then by grade, etc. 0000001861 00000 n 0000000956 00000 n Use mathematical representations of phenomena or design solutions to describe and/or support claims and/or explanations. 0000004769 00000 n Answer the following questions in the spaces provided. It is called triangulation because a triangle has three sides, and it takes three seismographs to locate an earthquake. 3. 01. Q(_?!6YV3B"\'9:4gTp*7^/P.X!skfkJ)1nG#a\{UD+iWM+ rQR]9SFTUPlM#"c:;tnsQPlu]Uyv?Ge}W;8cMA/x}'5clES~+}S+N7}wQ:/BkmI^" 5oqaBC[TRjq4.e}F:SQg{=u\xcg~EaZKReoC?oahJ` 'w endstream endobj 77 0 obj <>stream (Source: USGS). 92 0 obj <>/Filter/FlateDecode/ID[]/Index[83 25]/Info 82 0 R/Length 62/Prev 466624/Root 84 0 R/Size 108/Type/XRef/W[1 2 1]>>stream Pwaves have the greatest velocity and reach the, seismic station first. 12 Earthquake Location Lab Answer Key Full PDF - www.yvc.moeys.gov All 100,000+ K-12 STEM standards covered in TeachEngineering are collected, maintained and packaged by the Achievement Standards Network (ASN), Step 1: ans- d) 65 seconds Ste . Scientists and engineers around the globe gather data through observation and experimentation and use it to describe and understand how the world works. Direct students to finish the activity by completing the. To abbreviate, use the symbol M (a capital M, plain text, no sub/superscripts) expressed to the nearest 0.1. A seismograph is securely mounted onto the surface of the earth so that when the earth shakes, the entire unit shakes with it EXCEPT for the mass on the spring, which has inertia and remains in the same place. The period of a wave is the time between two adjacent wave peaks. Then locate and click the link in the center of the page under the question: "How is an earthquake epicenter located and how is magnitude determined?" 4. (Grades 6 - 8). : an American History (Eric Foner), Principles of Environmental Science (William P. Cunningham; Mary Ann Cunningham), Forecasting, Time Series, and Regression (Richard T. O'Connell; Anne B. Koehler), Chemistry: The Central Science (Theodore E. Brown; H. Eugene H LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward), Biological Science (Freeman Scott; Quillin Kim; Allison Lizabeth), Campbell Biology (Jane B. Reece; Lisa A. Urry; Michael L. Cain; Steven A. Wasserman; Peter V. Minorsky), How many minutes elapsed between the arrival of the first P wave and. 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. (, Find the S-P interval for each seismogram and record answers in the S-P column of, Find the distance to the epicenter (in kilometers) from each recording station and record answers in Table 1. 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. 0000006984 00000 n d>(ZvO= !5(~q* Another method of locating an earthquake is to use the P-wave arrival-time minus origin-time (P - O) interval instead of distance. Collect any giveaways for the students, such as earthquake posters or plate tectonic fliers. 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. earthquake. 12 Earthquake Location Lab Answer Key (PDF) - skislah.edu Web12-earthquake-location-lab-answer-key 1/1 Downloaded from skislah.edu.my on February 15, 2023 by guest 12 Earthquake Location Lab Answer Key Right here, we have countless ebook 12 Earthquake Location Lab Answer Key and collections to check out. 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. Why might the triangulation method not always produce an exact point (other than your measurement errors)? How does the Mad Scientist. 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The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. Finding the Epicenter Determine the epicenter distance from three different seismographs. lag time. 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. How are S and P waves used to determine how far away epicenters are? hb```b````e``n`d@ A 'EF''oquE"ky#:}m;9JmkPt~=unFHy&|X:70 vILZ*|%6mD! 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. Using historical seismographs, engineers forecast the strength or magnitude of earthquakes and make predictions and determine building codes and safety protocols. The point beneath Earth's surface where rock breaks under stress and causes an earthquake. For this activity, select the "Chile" box. They use three seismographs in a process called triangulation to determine earthquake epicenters. 12), Analyze and interpret data about natural hazards using direct and indirect evidence What is the 6. 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. at that station. 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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. 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. PDF. Legal. Make an overhead copy of each of the handouts. farther from the epicenter of an earthquake? Richter scale Method of earthquake measurement based on the amplitude of seismic . Share with Classes. Have students turn in their answers for the Explain portion of the worksheet. Assess their understanding based on the thoroughness of their answers. P and Swaves are body waves and travelthrough the interior of the earth. 0 500 1000 1500 2000 2500 3000 0000030968 00000 n 0000002383 00000 n Section 8.1 What Is an Earthquake? 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. endstream endobj 84 0 obj <> endobj 85 0 obj <> endobj 86 0 obj <>stream They make a model of a seismographa measuring device that records an earthquake on a seismogram. Accessed December 11, 2013. http://en.wikipedia.org/wiki/Moment_magnitude_scale, Novak, Gary. (Grades 61 0 obj <> endobj xref Please answer the following questions using the earthquake video shake, shake, shake. Considered best for measuring small earthquakes (3.5 M or less). H\0y 0000055643 00000 n Pwaves have the greatest velocity and reach theseismic station first. 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 Specifically, seismographs make recordings (seismograms) of the seismic waves generated from earthquakes, providing engineers and other researchers with data that they use to make predictions about future earthquakes. 83 0 obj <> endobj 0000030504 00000 n In this investigation, participants will understand that S and P waves are used to find the epicenter of an earthquake by using seismograph data to triangulate an epicenter. 0000005081 00000 n As the drum rotated, t, pen recorded the arrival of P, S, and surface, between arrival of P and S waves is called, epicenter, the longer the lag time measured, velocity, amplitude, and frequency of the. Reading Strategy. This is determined by the P-and S-wave arrival times. To complete the activity, some prior . As you may know, people have look numerous times for . A single recording station can only calculate distance, but not direction; to cover all possibilities, a complete circle is drawn around that station. The epicenter of an earthquake can be found using the difference between the arrival of the Primary and Secondary waves. Figure 8. distance = travel time for S waves 9 - Mapping the history of natural hazards in a region, combined with an understanding of related geologic forces can help forecast the locations and likelihoods of future events. Apr 8, 2020 One seismogram indicates the distance to the epicenter. What are those limits? =Cv :~4yrXP 62{_,*Uq/O-oUNBr-$y~:G},#3e^CS6U*_zVGY7ZNUWk2f?? {%!,"{u5E&OOqA_"/uxn-kx+Vz*EQb)Q Triangulation is required to determine exactly where it happened. 1. 0000001143 00000 n hWmo9+[+UH EkNB|6YiaVJ=cRh7{T1R,5LI1$K=s)XR&87@&$LTPLutlcyNuzjf--\?qaXZM&HM.Eg"HnTqSWqN0&~2kf0 Md|d&:zhe)7I? ACTIVITY 4.2B Locating an Earthquake Figure 4.5 shows seismograms for the same earthquake recorded at three locations - New York, Nome, Alaska, and Mexico City. 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. 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. How many minutes elapsed between the arrival of the first P wave and the last measurable Do you agree with this alignment? While earthquake locations are normally done with a computer that can quickly determine the paths of seismic waves through the Earth to many seismic stations, 15 Introduction to Geology Chapter Worksheet . P and Swaves are body waves and travel, through the interior of the earth. PDF Lecture 3 Activity: Locating an Earthquake Epicenter 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? 13 4 locating an earthquake epicenter geosciences libretexts . (Grades In the ASN, standards are hierarchically structured: first by source; e.g., by state; within source by type; e.g., science or mathematics; The spot where those three circles intersect is the epicenter (Figure 13.12). 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. Accessed December 11, 2013. http://www.sciencecourseware.com/virtualearthquake/, USGS Earthquake Magnitude Policy (implemented on January 18, 2002). %PDF-1.3 % What is an earthquake? time for any point that is 3,000 miles The point where your ruler crosses the middle line on the chart marks the magnitude (strength) of the earthquake. 1. What is an earthquake? THREE SEISMOGRAMS Seismogram A - New York, NY 1 minute 1. 0000004060 00000 n graph. P wave. Explain the difference between S and P waves, and how their time interval is used to determine the epicenter location. Seismographs - Keeping Track of Earthquakes | U.S. Geological Survey Mark the first arrival of the swave on each seismogram. S waves. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. The longer the time between the arrival of the P-wave and S-wave, the farther away is the epicenter. What types of engineers might use this data the most? The moment magnitude scale (MMS) was developed in the 1970s as a modification of the Richter scale and is better for measuring big earthquakes but less good for small ones. Now on the main page of the Earthquakes Living Lab website (see Figure 2), note the featuring of four active seismic areas and the mapping of real-time and current data from earthquakes happening around the world. 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. Lab Lesson 4 - Lab Lesson 4: Earthquakes and Seismology, Download. Fill Locating The Epicenter Of An Earthquake Worksheet Answers, Edit online. When seismic data is collected from at least three different locations, it can be used to determine the epicenter by where it intersects. Locating An Earthquake Epicenter Worksheet Answers !D,X2:azTG)kPT~Mj 4>d w@O'. In order to determine the location of an earthquake epicenter, seismographs from at least three different places are needed for a particular event. Travel-time graphDistance in Miles, Copyright 2023 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01, seismogram. Do limits exist on what science can predict? This worksheet focuses on using the p and s graph to find different variables. A circle with a radius of the distance to the quake can be drawn. The farther away the epicenter is, the greater the difference . 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. The spot where those three circles intersect is the epicenter (Figure 13.12). PDF Example Answers - TeachEngineering Wikipedia, The Free Encyclopedia. Show students some of the numerous online animations comparing the movements of P and S waves. Section A - Operator Information 1. The lag time for any 0000031066 00000 n Answers to the Finding the Epicenter Gizmos Lab - Name: Earthquakes 2 Great-circle arcs are drawn on the globe using the distance of the earthquake to the station as a radius. trailer <<0444DE89825047A1A483C62E98F50868>]>> startxref 0 %%EOF 114 0 obj <>stream 0000001978 00000 n PDF EARTHQUAKE EPICENTER LOCATION EXERCISE - Idaho geology Resources. 13. 0000001675 00000 n different types of seismic waves. If you complete all the problems, you should be able to: Identify P, S, and surface waves on a simple seismogram. 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) . Of the four Earthquakes Living Lab seismic areas, choose the "Chile" box, as shown in Figure 3. Triangulation and Magnitude: Student pairs complete the worksheet, which includes following a tutorial/simulation accessed through the Earthquakes Living Lab.

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