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. H\0y Practicing this technique, the students work several problems on a map of the US. 0000001893 00000 n 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. Cross), Give Me Liberty! 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. In the ASN, standards are hierarchically structured: first by source; e.g., by state; within source by type; e.g., science or mathematics; American Geosciences Institute. Describe the logarithmic nature of the earthquake magnitude scale. These natural disasters may be mitigated, however, by insightful and creative engineering. 0000004060 00000 n When an earthquake strikes, P waves arrive at a seismograph rst and S waves next. %PDF-1.4 % Activity4:LocatinganEarthquakeEpicenter Objectives:Ifyoucompletealltheproblems,youshouldbeableto: Identif earthquake. A circle with a radius of the distance to the quake can be drawn. The Richter scale was created in the 1930s to assign a single number to quantify the energy released during earthquakes. (Grades 9 - 12). 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. The American Geosciences Institute represents and serves the geoscience community by providing collaborative leadership and information to connect Earth, science, and people. [*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 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. Copyright 2023. by. Make changes to the sample. Was there an initial quake followed by smaller quakes? You will receive your score and answers at the end. Locating Earthquake Epicenter Worksheet Answer Key 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. Pwaves have the greatest velocity and reach theseismic station first. Divide the class into student pairs, and have them assemble at their computers with journals/paper and writing instruments. How does distance from the epicenter affect the S-P time interval? travel time for P waves. 0000078169 00000 n There are two sets of data and maps to do this activity/ lab for than once. Do you agree with this alignment? moment magnitude scale: Similar to the Richter scale, but replacing its use starting in the 1970s for more accuracy in measuring big earthquakes (magnitudes > 3.5) from greater distances. 01. 0000033429 00000 n 0000007783 00000 n 500p;333aXb3 \a.1. atrial depolarization. The travel-time graph 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. Collect any giveaways for the students, such as earthquake posters or plate tectonic fliers. 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 If you complete all the problems, you should be able to: Identify P, S, and surface waves on a simple seismogram. activity illustrates how the epicenter of an earthquake is found. 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 4. fault - a fracture in Earth's crust where the rocks on either side have moved. HTn0MmcHCB A circle is drawn from each of the three different seismograph locations, where the radius of each circle is equal to the distance from that station to the epicenter. In order to determine the location of an earthquake epicenter, seismographsfrom at least three different places are needed for a particular event. Triangulation is required to determine exactly where it happened. Activity: Locating an Earthquake Epicenter Lecture 3 Damage from the earthquake was widespread, but the actual location of the earthquake (the epicenter) For example, the western United States has earthquakes more frequently and on a larger scale than the eastern part of the country. Choose an answer and hit 'next'. *The NGSS logo is a registered trademark of WestEd. In Figure 13.9, there is an example seismogram from a station that includes a minor earthquake. Earthquakes and Seismic Waves - carlisleschools.org Continue the discussion with the following questions (or assign these questions as homework): Have student groups explore one or more of the other two regions (Southern California and Japan) provided in the Virtual Earthquake simulation. Thus, the Richter scale is used for measuring small earthquakes (3.5 M or less), while the moment magnitude scale is used for measuring stronger earthquakes (3.5 M or higher). Sixty-seven people lost their lives, and property damage was estimated at $6 billion. 12 Earthquake Location Lab Answer Key Full PDF - www.yvc.moeys.gov 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. (, 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. Facility Name Busine Child ren Information Child Name C. Child Social Security Number Type of Case being filed - Check only one category. 0000004769 00000 n Short for "primary wave" or "pressure wave." Edit your locating an earthquake epicenter worksheet answers online. Success is figuring out that the estimated magnitude is 5.9. P and S arrivals, you can now locate an earthquake your answers below. 13. locate and label the epicenter of the earthquake on this map. Refer to the data table and use the difference in arrival times to determine the distance to the earthquake epicenter for Station 2. 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. As you read and complete the activity, take notes so you can complete the. Graphs, charts, and images can be used to identify patterns in data. 1. The epicenter of an earthquake can be found using the difference between the arrival of the Primary and Secondary waves. What is an earthquake? 74 Earthquake Activity: Locating the Epicenter and Time of Earthquake . MS-ESS3-2. The time 0000001604 00000 n Sign, fax and printable from PC, iPad, tablet or mobile with pdfFiller Note-taking Worksheet. 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. When the tension becomes too great, the fault slips, causing an earthquake. 1,000 miles from the epicenter of an earthquake? 0000002544 00000 n inch = 500 km. waves from a distant earthquake. This section explains what earthquakes and faults are and what causes earthquakes. Students first triangulate the location of an earthquake's epicenter, then calculate its magnitude. BDF endstream endobj 74 0 obj <>stream Develop a solution to a technological problem that has the least negative environmental and social impact. (Listen to student ideas.) What about P waves? 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. at that station. Send activity 4 locating an earthquake epicenter worksheet answers via email, link, or fax. approximate period of the surface waves in seconds? Use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media. Short for "secondary wave" or "shear wave." Thanks for your feedback! Notify the classroom teacher of technology needs (overhead projector). Though the distance to the epicenter can be determined using a travel-time graph, the direction cannot be told. PDF Example Answers - TeachEngineering within type by subtype, then by grade, etc. Figure 13.10). Epicenter Location on Earth's surface directly above the focus of the earthquake 5. Assess their understanding based on the thoroughness of their answers. (Source: USGS, Wikipedia). You learned that seismologists determine the distance to the earthquake epicenter using the difference between S and P wave arrival times. Use Figure 5 and the travel-time graph in Figure 4 to determine . 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. A circle is drawn from each of the three different seismograph locations, where the radius of each circle is equal to the distance from that station to the epicenter. How is the magnitude of an earthquake determined? Figure 2 is a seismic wave travel-time The answer is the San Andreas Fault. Accessed December 11, 2013. http://www.sciencecourseware.com/virtualearthquake/, USGS Earthquake Magnitude Policy (implemented on January 18, 2002). 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. Hands-on Activity Earthquakes Living Lab: Finding Epicenters lag time. 0000002383 00000 n If a quake is far from the seismograph, the P-waves arrive long before the S-waves. Add to FlexBook Textbook. For lower grades, just introduce the concepts of triangulation and the magnitude scale; a thorough understanding of P and S waves is not vital. Zip. 0000055643 00000 n 0000000956 00000 n Use of the TeachEngineering digital library and this website constitutes acceptance of our Terms of Use and Privacy Policy. Students learn about factors that engineers take into consideration when designing buildings for earthquake-prone regions. to the lag time measured at this location? Have students click on the Earthquakes Living Lab hyperlink in the top left in the earthquakes section. 1) Identify the general term for waves released from an earthquake. minutes = 6 minutes. 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 Use the process of triangulation to locate an earthquake's epicenter. Activity 4 locating an earthquake epicenter answers: Fill out & sign earthquakes. Great exercise for Regents Earth Science. 0000006984 00000 n The USGS and its partners monitor and report earthquakes, assess earthquake impacts and hazards, and . epicenter: A point on the Earth's surface that is directly above the place where the underground forces of an earthquake originate. As you may know, people have look numerous times for . Why might the triangulation method not always produce an exact point (other than your measurement errors)? The hypocenter is the point within the earth where an earthquake rupture starts. We additionally manage to pay for . Thus technology use varies from region to region and over time. A. Seismic waves-waves generated by an earthquake, can move the ground forward and back- answers the question. Locating Earthquake Epicenters ( Read ) | Earth Science distance from transducer to the focal point. (from left to right). 12), Evaluate ways that technology can impact individuals, society, and the environment. Fill Locating The Epicenter Of An Earthquake Worksheet Answers, Edit online. Use mathematical representations of phenomena or design solutions to describe and/or support claims and/or explanations. Students also investigate which structural designs are most likely to survive an earthquake. 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Empirical evidence is required to differentiate between cause and correlation and make claims about specific causes and effects. I contacted the persons listed below to find out the location of the following people entitled to notice Name of Person Measure the difference in arrival times between the first shear (s) wave and the first compressional (p) wave, which can be interpreted from the seismogram. Thanks for your feedback! Analyze and interpret data on natural hazards to forecast future catastrophic events and inform the development of technologies to mitigate their effects. 0 500 1000 1500 2000 2500 3000 Pwaves have the greatest velocity and reach the, seismic station first. 2. HTAn determine the epicenter using the S P (S minus P) method. If a quake is far from the seismograph, the P-waves arrive long before the S-waves. X!.43p2t!}SLx-3z.KN4X+H\+vk? ya{I;W@DgMN2:UtbT=*+cY1.8Vm(u3Zt"J @9TAjJH@H_F3n7\Srdw~gAR#JQGj`ueS! The seismometers are shown as green dots. Activity 4 Locating An Earthquake Epicenter Answers: Fill Out & Sign . 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. 9 - As discussed earlier in this lesson, this method of determining the epicenter of an . 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. Therefore, the lag 0000053998 00000 n 12), computer or other device with Internet access, journal or writing paper for each student. 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 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. (Grades To accurately locate an earthquake epicenter, records from three. DOC Home - Westerville City Schools PDF. If a quake is near the seismograph, the S-waves arrive shortly after the P-waves. longer or shorter). Quick Tips. 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. 0000002009 00000 n Lab Lesson 4 - Lab Lesson 4: Earthquakes and Seismology, (Figure 3):. PDF Page - 1 Lab 08 - Seismology - Locating the Epicenter of an Earthquake different types of seismic waves. Describe what the "magnitude" of an earthquake is. d>(ZvO= It is called triangulation because a triangle has three sides, and it takes three seismographs to locate an earthquake. 0000006538 00000 n 0 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. (Figure 3):. 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 . Many updates and improvements! graph. aqmd. Video Guide / Worksheets and Quizzes for Quizzes and Answer Sheet __ 2. Seismic Waves. Apr 8, 2020 One seismogram indicates the distance to the epicenter. First locate and mark the three seismic stations on the world map provided below. Details. Subjects: Add to Library. All rights reserved. and S waves depends on the distance from the epicenter of the answer the following question. Thanks for your feedback! Make arrangements so that each student group has a computer with Internet access. Locating an Epicenter Activity - Arkansas Geological Survey Finding the epicenter of an Earthquake by Ah - Ha Lessons 5.0 (1) $3.00 PDF Activity This lesson teaches the student the process scientists use to locate the epicenter of an EQ. An earthquake is the violent movement of tectonic plates in the Earth's crust. endstream endobj startxref P wave. U.S. Geological Survey, U.S. Department of the Interior. 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Great-circle arcs are drawn on the globe using the distance of the earthquake to the station as a radius. Earthquakes occur along faults, which are cracks in the Earths crust that build tension. Then do the same for the S-wave. The longer the time is between the P-and S-wave . How many minutes elapsed between the arrival of the first P wave and the last measurable Next, have student groups answer the eight questions in the. Once three seismographs have been located, find the time interval between the arrival of the P-wave . Earthquake Worksheet Answers Shear wave from earthquake, moving slower than primary waves, through solid material only. 0000001746 00000 n 4. PDF ActivityEarthquake Location* - Cascadia Earthscope Earthquake and Finally, the location of the 3 seismographs are placed on a map and the distance to the epicenter is used to draw a circle with an origin at each seismograph and a radius equal to the distance to the epicenter as taken from each seismogram. 2. technology, engineering or math (STEM) educational standards. ' endstream endobj 69 0 obj <> endobj 70 0 obj [85 0 R] endobj 71 0 obj <> endobj 72 0 obj <> endobj 73 0 obj <>stream HtA1D41`s(GME$Ke*YdEOYf2-:r. locating the epicenter of an earthquake activity - TeachersPayTeachers 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. located 1,000 miles from the The longer the time between the arrival of the P-wave and S-wave, the farther away is the epicenter. Follow this simple guide to edit Locating the epicenter of an earthquake worksheet answer key in PDF format online free of charge: Explore all the advantages of our editor right now! How are S and P waves used to determine how far away epicenters are? 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. 3. Geology Labs On-Line, Department of Geological Sciences, California State University, Los Angeles, CA. This is determined by the P-and S-wave arrival times. The real-world earthquake data is viewable via a graphical interface using a scaling map. Figure 1 is a simplified example of a 9 - After this activity, students should be able to: Each TeachEngineering lesson or activity is correlated to one or more K-12 science, Locating_an_epicenter_activity - Activity4 - Course Hero PDF Finding Epicenters and Measuring Magnitudes Worksheet S waves. 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. Please answer the following questions using the earthquake video shake, shake, shake. Lab Activity Locating Epicenters Teaching Resources | TPT Swaves arrive at the seismic station after the Pwaves. Tips: Make sure students are reading the S waves and not the P waves. 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? What data is used to determine magnitude? A minimum of three seismic stations is necessary to locate an epicenter. time for any point that is 3,000 miles
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