Step 1: ans- d) 65 seconds Ste . 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. Section A - Operator Information 1. 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. 0000106240 00000 n For example, Upload a document. 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. atrial depolarization. 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. 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 Short for "primary wave" or "pressure wave." 0000031066 00000 n All 100,000+ K-12 STEM standards covered in TeachEngineering are collected, maintained and packaged by the Achievement Standards Network (ASN), MS-ESS3-2. Even though the scale formulae are different, MMS retains the familiar continuum of magnitude values defined by the older scale. Looking at the nomogram, students click on each location data point to see where the three lines intersect to read the estimated magnitude. Students learn about factors that engineers take into consideration when designing buildings for earthquake-prone regions. 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. 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. The longer the time between the arrival of the P-wave and S-wave, the farther away is the epicenter. Practicing this technique, the students work several problems on a map of the US. Do you agree with this alignment? Yw8SxGk}X3kfTfW& gk`41#'uf7"G\fsN4^8jC7[+%`qFLFKpFc The distance is in kilometers. (5 minutes) Discuss how gathering information on epicenters can be applied. If a quake is near the seismograph, the S-waves arrive shortly after the P-waves. Send activity 4 locating an earthquake epicenter worksheet answers via email, link, or fax. 1) Identify the general term for waves released from an earthquake. 2. Travel-time graphDistance in Miles, Copyright 2023 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01, seismogram. 5. focus - the point within Earth where an earthquake originates. 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. A circle with a radius of the distance to the quake can be drawn. Some places are more prone to earthquakes than others. Geologists use seismic waves to locate an earthquake's epicenter. 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 : 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. 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. 3. epicenter - the point on Earth's surface directly above the focus, or origin, of an earthquake. Develop a solution to a technological problem that has the least negative environmental and social impact. It takes S waves 14. The real-world earthquake data is viewable via a graphical interface using a scaling map. 0000002544 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). They make a model of a seismographa measuring device that records an earthquake on a seismogram. Refer to the data table and use the difference in arrival times to determine the distance to the earthquake epicenter for Station 2. HTn0MmcHCB 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 . !5(~q* It is slower than the same earthquake's P wave and cannot travel through liquids. Where the 3 circles intersect is the approximate location to the epicenter of the earthquake. 12), Evaluate ways that technology can impact individuals, society, and the environment. Lab Exercise #2: Locating the Epicenter of an Earthquake In this lab exercise, you will locate the epicenter of an earthquake. Section 8.1 What Is an Earthquake? 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. Finding the Epicenter Determine the epicenter distance from three different seismographs. American Geosciences Institute. graph. Apr 8, 2020 One seismogram indicates the distance to the epicenter. 01. Describe what the "magnitude" of an earthquake is. Dochub is the best editor for changing your documents online. Every year, earthquakes cause death and destruction worldwide. 0000007783 00000 n The USGS now uses the MMS to estimate magnitudes for all modern large earthquakes. We additionally manage to pay for . inch = 500 km. As you may know, people have look numerous times for . Multiply the difference by 8.4 to estimate the distance, in kilometers, from the seismograph station to the epicenter. The western U.S. has more faults than the eastern U.S., and therefore the western U.S. has more earthquakes. Based on your answers to the previous question, what is the lag time for locations that are In a concluding class discussion, have groups share their ideas about engineering and one new thing they learned about earthquakes. 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. 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. Figure 8. The magnitude determination is based on seismic data. 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. Direct students to finish the activity by completing the. Earthquakes and Seismic Waves Key Concepts . After reading about earthquakes, open a new window to an Earthquake Simulator at, Follow the simulation instructions. Subject Areas: 0000000956 00000 n If a quake is far from the seismograph, the P-waves arrive long before the S-waves. In order to determine the location of an earthquake epicenter, seismographsfrom at least three different places are needed for a particular event. As you read and complete the activity, take notes so you can complete the. 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. technology, engineering or math (STEM) educational standards. Use the graph to answer the questions that follow. Copyright 2023. farther from the epicenter of an earthquake? Then from the same recordings they determine the earthquake's magnitude, an estimate of the amount of energy released during the earthquake. 9 - 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. This worksheet focuses on using the p and s graph to find different variables. 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 and S waves to travel any distance up to 9 - 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. Make arrangements so that each student group has a computer with Internet access. 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 Fill Locating The Epicenter Of An Earthquake Worksheet Answers, Edit online. Thanks for your feedback! When seismic data is collected from at least three different locations, it can be used to determine the epicenter by where it intersects. Though they may weaken with distance, seismographs are sensitive enough to still detect these waves. Engineers first determine where earthquakes are likely to occur, and how severe they are likely to be. %PDF-1.5 % 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. 0000030240 00000 n 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. Facility Name Busine Child ren Information Child Name C. Child Social Security Number Type of Case being filed - Check only one category. Short for "secondary wave" or "shear wave." Triangulation to Locate an Earthquake By Earthquake Hazards Original Thumbnail Medium Detailed Description Triangulation can be used to locate an earthquake. (Source: USGS). https://people.wou.edu/~taylors/gs104/lab5key.pdf Locating Earthquake Epicenters | CK-12 Foundation Apr 8, 2020 . Sign, fax and printable from PC, iPad, tablet or mobile with pdfFiller Note-taking Worksheet. What about P waves? HS-PS4-1. 0000007097 00000 n Activity4:LocatinganEarthquakeEpicenter Objectives:Ifyoucompletealltheproblems,youshouldbeableto: Identif Expert Answer. 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. Success is figuring out that the estimated magnitude is 5.9. Please answer the following questions using the earthquake video - shake, shake, shake. 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. P wave. 0000009174 00000 n seismograph: An instrument that measures motions of the ground, including those of seismic waves generated by earthquakes. 0000078169 00000 n They use three seismographs in a process called triangulation to determine earthquake epicenters. Focus. 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. How do we determine the epicenter of an earthquake? Many updates and improvements! In the ASN, standards are hierarchically structured: first by source; e.g., by state; within source by type; e.g., science or mathematics; EARTHQUAKES: Epicenter Determination and Seismic Waves First locate and mark the three seismic stations on the world map provided below. Earthquakes can also cause tsunamis, which are very large waves that can damage coastlines and put coastal residents in danger. Seismic Waves. The answer is the San Andreas Fault. 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"? time for any point that is 3,000 miles If you complete all the problems, you should be able to: Identify P, S, and surface waves on a simple seismogram. long will it take, to the nearest 0. minutes, for the first P waves to travel from the epicenter to your station? U.S. Geological Survey, U.S. Department of the Interior. 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. Great-circle arcs are drawn on the globe using the distance of the earthquake to the station as a radius. Then do the same for the S-wave. 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 Describe the process of triangulation to locate an epicenter. 0000033429 00000 n Use mathematical representations of phenomena or design solutions to describe and/or support claims and/or explanations. question 1 of 3. Accessed December 11, 2013. http://www.sciencecourseware.com/virtualearthquake/, USGS Earthquake Magnitude Policy (implemented on January 18, 2002). The period of P waves is shorter, than the period of surface waves. View Notes - Locating_an_epicenter_activity from SCIENCE Earth Scie at Toms River High North. Students learn what causes earthquakes, how we measure and locate them, and their effects and consequences. The, amount of time that passes between the Pwave arrival and the Swave arrival is. All rights reserved. Accessed December 11, 2013. http://en.wikipedia.org/wiki/Moment_magnitude_scale, Novak, Gary. Make an overhead copy of each of the handouts. 0000002094 00000 n trailer <<320C1F98F8FF4795B5CCB8D9E9A0B99B>]/Prev 812054/XRefStm 1396>> startxref 0 %%EOF 93 0 obj <>stream This section explains what earthquakes and faults are and what causes earthquakes. Thanks for your feedback! 0000001143 00000 n 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. Earthquakes Living Lab: Finding Epicenters and Measuring Magnitudes ActivityWorksheet Example Answers 4 now big earthquakes are measured using the moment magnitude scale; both scales essentially rank the power (energy release) of the earthquake. 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. The farther a station is from the to the lag time measured at this location? 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 Activity: Locating an Earthquake Epicenter Lecture 3 Damage from the earthquake was widespread, but the actual location of the earthquake (the epicenter) approximate period of the surface waves in seconds? Thus technology use varies from region to region and over time. Seismograms First locate and mark the three seismic stations on the world map provided below. 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." Assess their understanding based on the thoroughness of their answers. 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. Through the online Earthquakes Living Lab, student pairs explore various types of seismic waves and the differences between shear waves and compressional waves. Key Facts & Information. 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. Tracings made at three separate seismic stations are needed to locate an earthquake epicenter. Subjects: Earth Sciences, General Science Grades: 5th - 8th Types: Activities, Laboratory Nov 2, 2020 Triangulation is used to determine the location of an earthquake. endstream endobj 84 0 obj <> endobj 85 0 obj <> endobj 86 0 obj <>stream You can also download it, export it or print it out. 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). travel 3,000 miles. 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. 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. So the difference in the P- and S-wave arrival times determines the distance between the epicenter and a seismometer. If a quake is near the seismograph, the S-waves arrive shortly after the P-waves. Edit your locating an earthquake epicenter worksheet answers online. 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). /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?? Please answer the following questions using the earthquake video shake, shake, shake. There are two sets of data and maps to do this activity/ lab for than once. It shows the time required for P 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). Must engineers be content with mitigating disasters, instead of preventing them? Millions of people witnessed the motion of the earthquake on television. How does the lag time change as you get farther and The spot where those three circles intersect is the epicenter (Figure 13.12). To locate the epicenter of the earthquake, seismologists use the . 0000055643 00000 n Alignment agreement: 0 500 1000 1500 2000 2500 3000 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. What is an earthquake? 0000008845 00000 n How does the Mad Scientist. In Figure 13.9, there is an example seismogram from a station that includes a minor earthquake. The spot where those three circles intersect is the epicenter (Figure 13.12). What are those limits? PS: We do not share personal information or emails with anyone. 74 Earthquake Activity: Locating the Epicenter and Time of Earthquake . How does the period of the P waves compare to the period of the surface waves? Triangulation and Magnitude: Student pairs complete the worksheet, which includes following a tutorial/simulation accessed through the Earthquakes Living Lab. 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. For lower grades, just introduce the concepts of triangulation and the magnitude scale; a thorough understanding of P and S waves is not vital. ' 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 distance = travel time for S waves The USGS and its partners monitor and report earthquakes, assess earthquake impacts and hazards, and . 0000053998 00000 n Accessed December 11, 2013. http://earthquake.usgs.gov/aboutus/docs/020204mag_policy.php. PDF. 0000001777 00000 n Learn more How Can I Locate the Earthquake Epicenter? Success is figuring out that the epicenter is just off the coast of Chile, where the three circles intersect. Find 23 millimeters on the right side of the chart and mark that point. Locating an Epicenter Activity - Arkansas Geological Survey 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. Record your answer from Lab Exercise #2, Step 1. 0000002009 00000 n What did it feel like? 12), Analyze and interpret data about natural hazards using direct and indirect evidence The point beneath Earth's surface where rock breaks under stress and causes an earthquake. Figure 2. 5 4. Encourage them to explore all of the Earthquakes Living Lab as they complete the worksheet. A little under 30 seconds, maybe around 26 seconds. What is the Collect any giveaways for the students, such as earthquake posters or plate tectonic fliers. Ask students what fault they think caused this earthquake. and S waves depends on the distance from the epicenter of the answer the following question. For this activity, select the "Chile" box. 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. Triangulation is required to determine exactly where it happened. minutes? Download. %PDF-1.3 % Last updated November 26, 2013. S-P interval: The time interval between the arrivals of P and S waves. P wave: The first seismic wave of an earthquake. The calculated distance from each seismometer to the earthquake is shown as a circle. Epicenter is the location on the surface of the Earth directly above where the earthquake starts. 9 - m>r/Q[6 17 Station St., Ste 3 Brookline, MA 02445. 61 33 Though the distance to the epicenter can be determined using a travel-time graph, the direction cannot be told. Once three seismographs have been located, find the time interval between the arrival of the P-wave and the arrival of the S-wave. 0000004457 00000 n Reading Strategy. 2. (Grades 6 - 8). It's a logarithmic scale from 1 to 10 with each succeeding level representing 10 times as much energy as the last. determine the epicenter using the S P (S minus P) method. 1,000 miles from the epicenter of an earthquake? The Richter scale was created in the 1930s to assign a single number to quantify the energy released during earthquakes. In this activity, the epicenter of the earthquake is in the center of Los Angeles, CA. 0000006011 00000 n 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. HlRnQ?R\>BjK' Pwaves have the greatest velocity and reach the, seismic station first. At least 3 earthquake recording stations are required to find the location of the earthquake epicenter. Great exercise for Regents Earth Science. 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. Three seismographs are needed. As the drum rotated, the Add to FlexBook Textbook. How does distance from the epicenter affect the magnitude (height) of the seismograph reading? Have students turn in their answers for the Explain portion of the worksheet. 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! Point on Earth's surface directly above an earthquake's focus. miles from the epicenter of an Richter magnitude scale: An earthquake measurement scale created in the 1930s to assign a single number to quantify the energy released during earthquakes. Use this information to complete the following. Notify the classroom teacher of technology needs (overhead projector). (Listen to student ideas.) earthquakes. 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.
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