activity 4 locating an earthquake epicenter answer key10 marca 2023
12), Evaluate ways that technology can impact individuals, society, and the environment. The living lab presents earthquake information through a focus on four active seismic areas and historic earthquakes in those areas. Students first triangulate the location of an earthquake's epicenter, then calculate its magnitude. The process is called triangulation. P and Swaves are body waves and travel, through the interior of the earth. 0000001862 00000 n The calculated distance from each seismometer to the earthquake is shown as a circle. 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 We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. This opens a new window to Michigan Techs UPSeis informational site about earthquakes and seismology. 0000004224 00000 n S waves. Triangulation and Magnitude: Student pairs complete the worksheet, which includes following a tutorial/simulation accessed through the Earthquakes Living Lab. 0000030504 00000 n I also will take them through the general process of how find the difference in arrival times of p- and s-waves can be used to find a distance to an earthquake and how using data from 3 seismograph stations is used to locate the epicenter. (Grades 9 - 12). Have students turn in their answers for the Explain portion of the worksheet. Yw8SxGk}X3kfTfW& gk`41#'uf7"G\fsN4^8jC7[+%`qFLFKpFc hbbd``b`$C`q9 X_$_g`bdxc`X activity illustrates how the epicenter of an earthquake is found. Every year, earthquakes cause death and destruction worldwide. inch = 500 km. 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 Do limits exist on what science can predict? 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. at that station. 0000001675 00000 n approximate period of the surface waves in seconds? The epicenter is the point directly above it at the surface of the Earth. First locate and mark the three seismic stations on the world map provided below. When an earthquake strikes, P waves arrive at a seismograph rst and S waves next. PDF. The vertical lines, spaced one, minute apart, represent the passage of time, (from left to right). Cross), Give Me Liberty! Though the distance to the epicenter can be determined using a travel-time graph, the direction cannot be told. Accessed December 11, 2013. http://en.wikipedia.org/wiki/Moment_magnitude_scale, Novak, Gary. Using this resource students find the arrival times of P-waves and S-waves using a seismogram. 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. For example, the western United States has earthquakes more frequently and on a larger scale than the eastern part of the country. Thanks for your feedback! What types of engineers might use this data the most? 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. Divide the class into student pairs, and have them assemble at their computers with journals/paper and writing instruments. seismograph: An instrument that measures motions of the ground, including those of seismic waves generated by earthquakes. The farther away the epicenter is, the greater the difference . The time 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. Encourage them to explore all of the Earthquakes Living Lab as they complete the worksheet. Show students some of the numerous online animations comparing the movements of P and S waves. Seismic stations detect earthquakes by the tracings made on seismographs. HS-PS4-1. How many minutes elapsed between the arrival of the first P wave and the last measurable 0000007783 00000 n [N'. 0000001396 00000 n minutes = 6 minutes. 0000004060 00000 n Learn more How Can I Locate the Earthquake Epicenter? 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. 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. 0000001777 00000 n 0000001604 00000 n Short for "secondary wave" or "shear wave." Tips: Make sure students are reading the S waves and not the P waves. 0000005081 00000 n Earthquakes & Volcanoes Test Review Answers. 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. 0000103591 00000 n If less precision is desired, precede M with a tilde, such as "M ~7" or "magnitude ~6.8.". Then do the same for the S-wave. 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. 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. Through the online Earthquakes Living Lab, student pairs explore various types of seismic waves and the differences between shear waves and compressional waves. Describe the logarithmic nature of the earthquake magnitude scale. travel 3,000 miles. Share with Classes. At least 3 earthquake recording stations are required to find the location of the earthquake epicenter. 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. 74 Earthquake Activity: Locating the Epicenter and Time of Earthquake . aqmd. How does distance from the epicenter affect the S-P time interval? Then from the same recordings they determine the earthquake's magnitude, an estimate of the amount of energy released during the earthquake. What data is used to determine magnitude? Pwaves have the greatest velocity and reach theseismic station first. determine the epicenter using the S P (S minus P) method. Of the four Earthquakes Living Lab seismic areas, choose the "Chile" box, as shown in Figure 3. 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. Place a ruler (or straight edge) on the chart between the points you marked for the distance to the epicenter and the amplitude. The point beneath Earth's surface where rock breaks under stress and causes an earthquake. 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. 0000007097 00000 n Have students click on the Earthquakes Living Lab hyperlink in the top left in the earthquakes section. E}g7$i(=K)"aj%v]vPcYloi@X3noGX{[XucOgkdF.>Ym^fwrQf;8_Nok3w\;?n_Hhc?>k\o[%DgwJ'3d.lTqDy_aJw! gov For online instructions and current fees click here. activity 4 locating an earthquake epicenter The Science of Earthquakes | U.S. Geological Survey An earthquake is what happens when two blocks of the earth suddenly slip past one . 0000002840 00000 n Continue the discussion with the following questions (or assign these questions as homework): Have student groups explore one or more of the other two regions (Southern California and Japan) provided in the Virtual Earthquake simulation. A single recording station can only calculate distance, but not direction; to cover all possibilities, a complete circle is drawn around that station. *The NGSS logo is a registered trademark of WestEd. Using online resources and simulations available through the Earthquakes Living Lab, students explore the consequences of subsurface ground type and building height on seismic d Seismographs are measuring devices designed by engineers and used by researchers to determine the locations and magnitudes of earthquakes. (i. 0000079769 00000 n 92 0 obj <>/Filter/FlateDecode/ID[]/Index[83 25]/Info 82 0 R/Length 62/Prev 466624/Root 84 0 R/Size 108/Type/XRef/W[1 2 1]>>stream Free K-12 standards-aligned STEM curriculum for educators everywhere. 2. Student exploration Graphing Skills SE Key Gizmos Explore Learning. Locating an Epicenter through Triangulation of Seismic Data- Remote/Hybrid/Live. HTn {0,`K6}(J6]&Q^"!q57y_VQ9fp3/?Mc=KGsrrt:c\$Lh`4}>C>`qcSj0[YpZ_Su(322/N Z./$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 seismogram. 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. 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. 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. Great-circle arcs are drawn on the globe using the distance of the earthquake to the station as a radius. : 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. waves from a distant earthquake. 1. https://people.wou.edu/~taylors/gs104/lab5key.pdf Locating Earthquake Epicenters | CK-12 Foundation Apr 8, 2020 . The real-world earthquake data is viewable via a graphical interface using a scaling map. locate and label the epicenter of the earthquake on this map. long will it take, to the nearest 0. minutes, for the first P waves to travel from the epicenter to your station? Practice with Triangulation: Locating an earthquake epicenter. The earthquake occurred somewhere along that circle. Another method of locating an earthquake is to use the P-wave arrival-time minus origin-time (P - O) interval instead of distance. A little under 30 seconds, maybe around 26 seconds. Review their answers to assess their base knowledge of the subject matter. 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. 0000030968 00000 n 13. If you complete all the problems, you should be able to: Identify P, S, and surface waves on a simple seismogram. 1. Focus (aka Hypocenter) is the location in the Earth where the earthquake starts. Students learn what causes earthquakes, how we measure and locate them, and their effects and consequences. What did it feel like? When the tension becomes too great, the fault slips, causing an earthquake. Do you agree with this alignment? Many updates and improvements! Thanks for your feedback! Multiply the difference by 8.4 to estimate the distance, in kilometers, from the seismograph station to the epicenter. You will analyze the records and locate the earthquake using a method known located 1,000 miles from the Since the 1970s, the use of the Richter magnitude scale has largely been replaced in the scientific community by the moment magnitude scale (MMS). Fill Locating The Epicenter Of An Earthquake Worksheet Answers, Edit online. An earthquake is what happens when two blocks of the earth suddenly slip past one directly above it on the surface of the earth is called the epicenter. What data is used to determine magnitude? How are S and P waves used to determine how far away epicenters are? Thanks for your feedback! As you may know, people have look numerous times for . technology, engineering or math (STEM) educational standards. Notify the classroom teacher of technology needs (overhead projector). 107 0 obj <>stream 0000115324 00000 n Several thousand seismographs exist at locations around the planet, continuously measuring abnormalities in the Earth's movement. Subjects: 0000078100 00000 n How can you locate an earthquake's epicenter? 0000009174 00000 n 12), computer or other device with Internet access, journal or writing paper for each student. The spot where those three circles intersect is the epicenter (Figure 13.12). to the lag time measured at this location? ya{I;W@DgMN2:UtbT=*+cY1.8Vm(u3Zt"J @9TAjJH@H_F3n7\Srdw~gAR#JQGj`ueS! distance = travel time for S waves Locating Epicenter Lab Worksheet (1).docx, Updating Patient Registration B at 08_10_2022 03_03 PM.pdf, You need to deploy an Azure environment that meets the company migration plan, Step 1 of 2 Program 1 A Simple Python Program Welcome with Two Messages Running, More women in academia report polarization assimilation in male skewed and male, A TACACS B RADIUS C Kerberos D SAML Correct Answer D QUESTION 321 A network, PTSD in Children and Adolescents - Copy - Copy - Copy - Copy.docx, Effects of Excitation and Prime Mover Control The excitation control helps to, D1 Fundamental security design principles.docx, Question 5 Correct Mark 100 out of 100 Remove flag Question 6 Correct Mark 100, Thomas Concurrence broadly attacked current NDD Federal gov should be allowed to, 769 Water at 15C is to be heated to 65C by passing it over a bundle of 4 m. Course Hero is not sponsored or endorsed by any college or university. minutes and P waves 8 minutes to hb```b````e``n`d@ A 'EF''oquE"ky#:}m;9JmkPt~=unFHy&|X:70 vILZ*|%6mD! miles from the epicenter of an 5 4. %PDF-1.5 % Figure 13.10). The longer the time is between the P-and S-wave . 0000002383 00000 n Alignment agreement: Refer to the data table and use the difference in arrival times to determine the distance to the earthquake epicenter for Station 2. ' 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 m>r/Q[6 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 0000003966 00000 n 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. If the lag time were measured at a location closer to the epicenter, how would it compare 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. trailer <<320C1F98F8FF4795B5CCB8D9E9A0B99B>]/Prev 812054/XRefStm 1396>> startxref 0 %%EOF 93 0 obj <>stream Sixty-seven people lost their lives, and property damage was estimated at $6 billion. Mr Gneiss. 500p;333aXb3 \a.1. How is the magnitude of an earthquake determined? See Answer. 3. 9 - The hypocenter is the point within the earth where an earthquake rupture starts. Make arrangements so that each student group has a computer with Internet access. Activity4:LocatinganEarthquakeEpicenter Objectives:Ifyoucompletealltheproblems,youshouldbeableto: Identif HtA1D41`s(GME$Ke*YdEOYf2-:r. 0000002250 00000 n Shear wave from earthquake, moving slower than primary waves, through solid material only. These distances are determined using a travel-time curve, which is a graph of Pand S-wave arrival times (see Figure 13.11). 0000033429 00000 n Video Guide / Worksheets and Quizzes for Quizzes and Answer Sheet __ 2. 9 - 9 - To complete the activity, some prior . It is called triangulation because a triangle has three sides, and it takes three seismographs to locate an earthquake. 0000004457 00000 n consider a seismograph stationed 3, It takes S waves 14. 0000001978 00000 n The vertical lines, spaced one If a quake is far from the seismograph, the P-waves arrive long before the S-waves. However, please review it for the specific setting, materials, students, and conventional safety precautions. How far do S waves travel in 5 Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org. Next, have student groups answer the eight questions in the. (Grades 6 - 8). Use this information to complete the following. travel time for P waves. Reading Strategy. distance from transducer to the focal point. 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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. The American Geosciences Institute represents and serves the geoscience community by providing collaborative leadership and information to connect Earth, science, and people. Direct students to finish the activity by completing the. epicenter, the longer the lag time measured To do this, have the students use, Find the epicenter of the earthquake on the map (. Make an overhead copy of each of the handouts. In Figure 13.9, there is an example seismogram from a station that includes a minor earthquake. Key Facts & Information. 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. 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. Locating an Epicenter Activity - Arkansas Geological Survey 0000001736 00000 n (Source: USGS). X!.43p2t!}SLx-3z.KN4X+H\+vk? This section explains what earthquakes and faults are and what causes earthquakes. As the drum rotated, the Direct student pairs to independently complete the tutorial/simulation to find an epicenter location via the triangulation method and compute the earthquake magnitude: The simulation directs students to look at three simplified seismograms from seismic stations in Chile (Talca, Santiago, Osorno) and select the correct measurements of the S-P intervals. 0000030240 00000 n THREE SEISMOGRAMS Seismogram A - New York, NY 1 minute 1. 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. Add to Library. (Source: USGS, Wikipedia).
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