How does the Mad Scientist. Key Facts & Information. Figure 2. 0000008088 00000 n Locating an Earthquake's Epicenter - American Geosciences Institute Wikipedia, The Free Encyclopedia. Thanks for your feedback! The vertical lines, spaced one, minute apart, represent the passage of time, (from left to right). question 1 of 3. If you complete all the problems, you should be able to: Identify P, S, and surface waves on a simple seismogram. Locating_an_epicenter_activity-MB.pdf - Activity 4: Locating an HS-PS4-1. 0000004224 00000 n Accessed December 11, 2013. http://en.wikipedia.org/wiki/Moment_magnitude_scale, Novak, Gary. 0000000956 00000 n One seismogram indicates the distance to the epicenter. You will analyze the records and locate the earthquake using a method known Find 23 millimeters on the right side of the chart and mark that point. In a concluding class discussion, have groups share their ideas about engineering and one new thing they learned about earthquakes. The real-world earthquake data is viewable via a graphical interface using a scaling map. Solved ACTIVITY 2B Locating an Earthquake Figure 5 shows - Chegg 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. Great-circle arcs are drawn on the globe using the distance of the earthquake to the station as a radius. Before going to the classroom, you will need to: Provide each student, with the following: Earthquakes occur every day all over the United States and all over the world. 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. PDF EARTHQUAKE EPICENTER LOCATION EXERCISE - Idaho geology 0000004060 00000 n Apr 8, 2020 One seismogram indicates the distance to the epicenter. 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. Locating an Epicenter Activity - Arkansas Geological Survey Swaves arrive at the seismic station after the Pwaves. 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. (Figure 3):. 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. 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 Scientists and engineers around the globe gather data through observation and experimentation and use it to describe and understand how the world works. locating the epicenter of an earthquake activity - TeachersPayTeachers locate and label the epicenter of the earthquake on this map. Tracings made at three separate seismic stations are needed to locate an earthquake epicenter. hb```b````e``n`d@ A 'EF''oquE"ky#:}m;9JmkPt~=unFHy&|X:70 vILZ*|%6mD! 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. seismogram. Though the distance to the epicenter can be determined using a travel-time graph, the direction cannot be told. 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 . %%EOF Though they may weaken with distance, seismographs are sensitive enough to still detect these waves. ACTIVITY 4.2B Locating an Earthquake Figure 4.5 shows - Chegg longer or shorter). The magnitude is the logarithm of the amplitude of the ground wave. 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 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. 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. What is an earthquake? When the tension becomes too great, the fault slips, causing an earthquake. 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! Make an overhead copy of each of the handouts. Sixty-seven people lost their lives, and property damage was estimated at $6 billion. 0000002009 00000 n The answer is the San Andreas Fault. It is slower than the same earthquake's P wave and cannot travel through liquids. See Answer. Virtual Earthquake (tutorial/simulation) 1996. The spot where those three circles intersect is the epicenter (Figure 13.12). For example, the western United States has earthquakes more frequently and on a larger scale than the eastern part of the country. A minimum of three seismic stations is necessary to locate an epicenter. Locating the epicenter of an earthquake worksheet answer key, locating the epicenter of an earthquake worksheet pdf, chapter 7 lab 1 locating epicenters answer key, how many seismographs are needed to locate the epicenter of an earthquake. Subjects: Earth Sciences, General Science Grades: 5th - 8th Types: Activities, Laboratory Point on Earth's surface directly above an earthquake's focus. 0000001861 00000 n In the ASN, standards are hierarchically structured: first by source; e.g., by state; within source by type; e.g., science or mathematics; Success is figuring out that the estimated magnitude is 5.9. Using the real-world data in the living lab enables students and teachers to practice analyzing data to solve problems and answer questions, in much the same way that scientists and engineers do every day. This opens a new window to Michigan Techs UPSeis informational site about earthquakes and seismology. activity illustrates how the epicenter of an earthquake is found. 1. HTn0MmcHCB E}g7$i(=K)"aj%v]vPcYloi@X3noGX{[XucOgkdF.>Ym^fwrQf;8_Nok3w\;?n_Hhc?>k\o[%DgwJ'3d.lTqDy_aJw! S waves. What types of engineers might use this data the most? time for any point that is 3,000 miles 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). Figure 2 is a seismic wave travel-time farther from the epicenter of an earthquake? After this activity, students should be able to: Each TeachEngineering lesson or activity is correlated to one or more K-12 science, PDF Page - 1 Lab 08 - Seismology - Locating the Epicenter of an Earthquake Details. Cross), Give Me Liberty! Focus (aka Hypocenter) is the location in the Earth where the earthquake starts. 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. Divide the class into student pairs, and have them assemble at their computers with journals/paper and writing instruments. Add to Library. Doing this generates an S-P interval graph (time vs. distance, called the travel-time curve graph) from which they determine and select three epicentral distances. gov For online instructions and current fees click here. There are two sets of data and maps to do this activity/ lab for than once. It shows the time required for P Subjects: approximate period of the surface waves in seconds? This worksheet focuses on using the p and s graph to find different variables. Triangulation to Locate an Earthquake | U.S. Geological Survey Type text, add images, blackout confidential details, add comments, highlights and more. Copyright USGS http://earthquake.usgs.gov/learn/kids/eqscience.php. 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. Locating Earthquake Epicenter Lab Answer Key buysms de. How Can I Locate the Earthquake Epicenter? | Michigan Technological 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. 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. The USGS and its partners monitor and report earthquakes, assess earthquake impacts and hazards, and . S-P interval: The time interval between the arrivals of P and S waves. Pwaves have the greatest velocity and reach the, seismic station first. 107 0 obj <>stream 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 For lower grades, just introduce the concepts of triangulation and the magnitude scale; a thorough understanding of P and S waves is not vital. The hypocenter is the point within the earth where an earthquake rupture starts. 0000001143 00000 n The distance to the earthquake epicenter is then determined using the "Earthquake P-Wave and S-Wave Travel Time" graph. 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. The spot where those three circles intersect is the epicenter (Figure 13.12). Run through the investigation yourself and record the data, just to see how long it takes. 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. Travel-time graphDistance in Miles, Copyright 2023 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01, seismogram. BDF endstream endobj 74 0 obj <>stream American Geosciences Institute. What data is used to determine magnitude? The travel-time graph minutes and P waves 8 minutes to Click for facts and worksheets in PDF! Last modified July 18, 2012. approximate period of the surface waves in seconds? Lab Activity Locating Epicenters Flashcards | Quizlet The period of P waves is shorter, than the period of surface waves. Looking at the nomogram, students click on each location data point to see where the three lines intersect to read the estimated magnitude. S wave: The second seismic wave of an earthquake. Do you agree with this alignment? The seismometers are shown as green dots. (Source: USGS). How does distance from the epicenter affect the magnitude (height) of the seismograph reading? Locating the Epicenter of an Earthquake - SE Asia a foldable activity, slide presentation to guide reading, and an answer key! Explain the difference between S and P waves, and how their time interval is used to determine the epicenter location. Tips: Make sure students are reading the S waves and not the P 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. Overhead transparency of each of the handouts, Overhead projector (contact classroom teacher about this) and screen, Optional: overhead transparency or PowerPoint of, What do you know about the causes and impacts of Earthquakes? PDF Locating an Epicenter Activity - Arkansas Geological Survey What data is used to determine magnitude? 1) Identify the general term for waves released from an earthquake. Section A - Operator Information 1. Last updated November 26, 2013. distance from transducer to the focal point. Student exploration Graphing Skills SE Key Gizmos Explore Learning. activity 4 locating an earthquake epicenter The Science of Earthquakes | U.S. Geological Survey An earthquake is what happens when two blocks of the earth suddenly slip past one . Free K-12 standards-aligned STEM curriculum for educators everywhere. Accessed December 11, 2013. http://earthquake.usgs.gov/aboutus/docs/020204mag_policy.php. Notify the classroom teacher of technology needs (overhead projector). 0000078169 00000 n In this 1-to-10 logarithmic scale, each succeeding level representing 10 times as much energy as the last. Quick Tips. 17 Station St., Ste 3 Brookline, MA 02445. (Grades 9 - 12). We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. The earthquake occurred somewhere along that circle. 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. travel 3,000 miles. How many minutes elapsed between the arrival of the first P wave and the last measurable 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. Direct students to finish the activity by completing the. Three seismographs are needed. The living lab presents earthquake information through a focus on four active seismic areas and historic earthquakes in those areas. Focal Depth. 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. Locating An Earthquake Epicenter Worksheet Answers 9 - Earthquakes and Seismic Waves Key Concepts . Nov 2, 2020 Triangulation is used to determine the location of an earthquake. Ch Person/Attorney Filing: - Superior Court - Maricopa County - superiorcourt maricopa. Do you think we will someday be able to prevent earthquakes? The three seismograms in this activity are unfi ltered station records from a single event that occurred on August 1, 1999. Another method of locating an earthquake is to use the P-wave arrival-time minus origin-time (P - O) interval instead of distance. P and Swaves are body waves and travel, through the interior of the earth. 12), computer or other device with Internet access, journal or writing paper for each student. What is the 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. 0000078100 00000 n Earthquake Worksheet Answers Where the 3 circles intersect is the approximate location to the epicenter of the earthquake. Refer to the data table and use the difference in arrival times to determine the distance to the earthquake epicenter for Station 2. 0000007097 00000 n Figure 13.10). HS]o01j6R0iMm4U=wL8]BE< Choose an answer and hit 'next'. However, please review it for the specific setting, materials, students, and conventional safety precautions. U.S. Geological Survey, U.S. Department of the Interior. Upload a document. 1. 3. epicenter - the point on Earth's surface directly above the focus, or origin, of an earthquake. Describe what the "magnitude" of an earthquake is. Success is figuring out that the epicenter is just off the coast of Chile, where the three circles intersect. 0000004511 00000 n Reading Strategy. Locating Earthquake Epicenter Teaching Resources | TPT 0 500 1000 1500 2000 2500 3000 As you may know, people have look numerous times for . 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 PDF Locating An Earthquake Epicenter Lab Answers - Full PDF 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. 0000005544 00000 n (Grades 6 - 8). A. Seismic waves-waves generated by an earthquake, can move the ground forward and back- answers the question. To abbreviate, use the symbol M (a capital M, plain text, no sub/superscripts) expressed to the nearest 0.1. The farther a station is from the 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. 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) . 0000115324 00000 n The lag time for any Thanks for your feedback! 0000001562 00000 n %PDF-1.3 % The Earthquakes Living Lab gives students the chance to track earthquakes across the planet and examine where, why and how they are occurring. Conclude the activity with a class discussion (and perhaps homework questions) to share ideas and answers, as described in the Assessment section. Solved Lab Exercise #2: Locating the Epicenter of an - Chegg PDF Finding Epicenters and Measuring Magnitudes Worksheet (Listen to student ideas.) Engineers first determine where earthquakes are likely to occur, and how severe they are likely to be. 0000004457 00000 n Learn more How Can I Locate the Earthquake Epicenter? 83 0 obj <> endobj P and Swaves are body waves and travelthrough the interior of the earth. Zip. When seismic data is collected from at least three different locations, it can be used to determine the epicenter by where it intersects. trailer <<320C1F98F8FF4795B5CCB8D9E9A0B99B>]/Prev 812054/XRefStm 1396>> startxref 0 %%EOF 93 0 obj <>stream Activity 4: Locating an Earthquake Epicenter Examining Seismograms The three basic types of seismic wave generated by an earthquake at its focus are Pwaves, Swaves, and Surface waves. Y$Kr;V6[;Dq vg~cx:A[^jCssupwD endstream endobj 80 0 obj <> endobj 81 0 obj <>stream Please answer the following questions using the earthquake video shake, shake, shake. 6. Note the differences in aqmd. Earthquakes & Volcanoes Test Review Answers. Hand out the worksheets to the groups and direct them to read through the instructions. Answers to the Finding the Epicenter Gizmos Lab - Name: Earthquakes 2 atrial depolarization. Video Guide / Worksheets and Quizzes for Quizzes and Answer Sheet __ 2. For example, Locating_an_epicenter_activity - Activity4 - Course Hero 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. 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. m>r/Q[6 Lab Activity Locating Epicenters Teaching Resources | TPT Seismic stations detect earthquakes by the tracings made on seismographs. and S waves to travel any distance up to a project of D2L (www.achievementstandards.org). Triangulation to Locate an Earthquake By Earthquake Hazards Original Thumbnail Medium Detailed Description Triangulation can be used to locate an earthquake.

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