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E}g7$i(=K)"aj%v]vPcYloi@X3noGX{[XucOgkdF.>Ym^fwrQf;8_Nok3w\;?n_Hhc?>k\o[%DgwJ'3d.lTqDy_aJw! earthquake - shaking and vibration of Earth's surface. At least 3 earthquake recording stations are required to find the location of the earthquake epicenter. 0000006538 00000 n %PDF-1.4 % Through the online Earthquakes Living Lab, student pairs explore various types of seismic waves and the differences between shear waves and compressional waves. To locate the epicenter of the earthquake, seismologists use the . Note the differences in Three seismographs are needed. This investigation is considered generally safe to do with students. What is the time lag for the Seattle, Washington, seismic station? Also commonly termed the focus. 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. What is an earthquake? One seismogram indicates the distance to the epicenter. Focus (aka Hypocenter) is the location in the Earth where the earthquake starts. consider a seismograph stationed 3, (5 minutes) Discuss how gathering information on epicenters can be applied. Lab Activity Locating Epicenters Flashcards | Quizlet PDF EARTHQUAKE EPICENTER LOCATION EXERCISE - Idaho geology In the U.S., earthquake measurements under the MMS (those of magnitude 3.5 or higher) are still commonly erroneously referred to by the general public and media as being on the Richter scale, due to more familiarity with the Richter scale. 11 minutes elapsed between the first P wave and the last measurable surface wave. Triangulation to Locate an Earthquake | U.S. Geological Survey 0000008845 00000 n PS: We do not share personal information or emails with anyone. Thanks for your feedback! Legal. 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. HS-PS4-1. It is called triangulation because a triangle has three sides, and it takes three seismographs to locate an earthquake. The travel-time graph P and Swaves are body waves and travelthrough the interior of the earth. 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 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. Empirical evidence is required to differentiate between cause and correlation and make claims about specific causes and effects. Collect any giveaways for the students, such as earthquake posters or plate tectonic fliers. Subjects: 01. During an earthquake, seismic waves are sent all over the globe. Send activity 4 locating an earthquake epicenter worksheet answers via email, link, or fax. Use the graph to answer the questions that follow. %%EOF 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. H\0y Sign, fax and printable from PC, iPad, tablet or mobile with pdfFiller Note-taking Worksheet. important in helping seismologists determine the epicenter of the earthquake. S wave: The second seismic wave of an earthquake. Quick Tips. Section A - Operator Information 1. Students learn about factors that engineers take into consideration when designing buildings for earthquake-prone regions. 0000002507 00000 n minutes and P waves 8 minutes to You will analyze the records and locate the earthquake using a method known Solved ACTIVITY 2B Locating an Earthquake Figure 5 shows - Chegg 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! The lag time for any 74 Earthquake Activity: Locating the Epicenter and Time of Earthquake . Earthquakes and Seismic Waves Key Concepts . Section 8.1 What Is an Earthquake? 0000007783 00000 n 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. If a quake is near the seismograph, the S-waves arrive shortly after the P-waves. If your seismograph station is Locating Earthquake Epicenters ( Read ) | Earth Science Divide the class into student pairs, and have them assemble at their computers with journals/paper and writing instruments. Develop a solution to a technological problem that has the least negative environmental and social impact. Locating An Earthquake Epicenter Worksheet Answers You can also download it, export it or print it out. !5(~q* "`B(R6sj [CX7p+s =#;~ `'kA waves from a distant earthquake. 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. Must engineers be content with mitigating disasters, instead of preventing them? Refer to the data table and use the difference in arrival times to determine the distance to the earthquake epicenter for Station 2. If a quake is far from the seismograph, the P-waves arrive long before the S-waves. Lab 8 - earthquake lab - Lab: Locating the Epicenters of Earthquakes Triangulation and Magnitude: Student pairs complete the worksheet, which includes following a tutorial/simulation accessed through the Earthquakes Living Lab. The point beneath Earth's surface where rock breaks under stress and causes an earthquake. What did it feel like? If a quake is near the seismograph, the S-waves arrive shortly after the P-waves. Seismic stations detect earthquakes by the tracings made on seismographs. Accessed December 11, 2013. http://en.wikipedia.org/wiki/Moment_magnitude_scale, Novak, Gary. Where the 3 circles intersect is the approximate location to the epicenter of the earthquake. 12 Earthquake Location Lab Answer Key Full PDF - www.yvc.moeys.gov If the lag time were measured at a location closer to the epicenter, how would it compare Finding the epicenter worksheet answer key. As the drum rotated, the Many updates and improvements! 0000031066 00000 n American Geosciences Institute. and S waves to travel any distance up to *The NGSS logo is a registered trademark of WestEd. Finding the Epicenter Determine the epicenter distance from three different seismographs. (Grades 9 - 12). 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 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. technology, engineering or math (STEM) educational standards. The Richter scale was created in the 1930s to assign a single number to quantify the energy released during earthquakes. https://people.wou.edu/~taylors/gs104/lab5key.pdf Locating Earthquake Epicenters | CK-12 Foundation Apr 8, 2020 . To complete the activity, some prior . Short for "primary wave" or "pressure wave." When seismic data is collected from at least three different locations, it can be used to determine the epicenter by where it intersects. PDF Example Answers - TeachEngineering What was the lag time (in minutes) at this location? HTAn 0000001862 00000 n %PDF-1.5 % and S waves depends on the distance from the epicenter of the answer the following question. After this activity, students should be able to: Each TeachEngineering lesson or activity is correlated to one or more K-12 science, So the difference in the P- and S-wave arrival times determines the distance between the epicenter and a seismometer. The epicenter of an earthquake can be found using the difference between the arrival of the Primary and Secondary waves. We additionally manage to pay for . 0000106240 00000 n Earthquake Worksheet Answers X!.43p2t!}SLx-3z.KN4X+H\+vk? To accurately locate an earthquake epicenter, records from three. Activity: Locating an Earthquake Epicenter Lecture 3 Damage from the earthquake was widespread, but the actual location of the earthquake (the epicenter) : 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. 1. Last updated November 26, 2013. Therefore, the lag 0000003991 00000 n Earthquakes & Volcanoes Test Review Answers. Use this information to complete the following. travel time for P waves. travel 3,000 miles. Do you agree with this alignment? 0000004511 00000 n Epicenter is the location on the surface of the Earth directly above where the earthquake starts. In this activity, the epicenter of the earthquake is in the center of Los Angeles, CA. 0000003855 00000 n 500p;333aXb3 \a.1. EARTHQUAKES: Epicenter Determination and Seismic Waves First locate and mark the three seismic stations on the world map provided below. Scientists use triangulation to find the epicenter of an earthquake. What is an earthquake? minutes? Do you agree with this alignment? Once three seismographs have been located, find the time interval between the arrival of the P-wave . 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. 0000001777 00000 n Based on your answers to the previous question, what is the lag time for locations that are Edit your locating an earthquake epicenter worksheet answers online. epicenter of an earthquake, how HTn0"H@w=s(vxk8OM1px-{$_!o5|CS7RPr#V(0CUa%ZkuT9t};D Jj=.9,z!#@n5YCu>R88tfFRX=iRK (, Have any of you ever experienced an earthquake or know anyone who has? longer or shorter). 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. 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. 0000001143 00000 n Students learn about the types of seismic waves produced by earthquakes and how they move through the Earth. Solved Lab Exercise #2: Locating the Epicenter of an - Chegg The calculated distance from each seismometer to the earthquake is shown as a circle. Activity 4 Locating An Earthquake Epicenter Answers: Fill Out & Sign . Triangulation is required to determine exactly where it happened. Once three seismographs have been located, find the time interval between the arrival of the P-wave and the arrival of the S-wave. 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. For upper grades, have students work individually, do two of the three seismic area tutorials, and look up historical earthquakes to learn their magnitudes, and make data tables or graphs with this information. 1. Richter scale Method of earthquake measurement based on the amplitude of seismic . DOC Home - Westerville City Schools 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. View Notes - Locating_an_epicenter_activity from SCIENCE Earth Scie at Toms River High North. As discussed earlier in this lesson, this method of determining the epicenter of an . HS]o01j6R0iMm4U=wL8]BE< All rights reserved. (Grades Before looking at the Earthquakes Living Lab, have pairs complete the, Then guide the teams to the Earthquakes Living Lab via the living lab website at. directly above it on the surface of the earth is called the epicenter. Earthquakes and Seismic Waves - carlisleschools.org trailer <<0444DE89825047A1A483C62E98F50868>]>> startxref 0 %%EOF 114 0 obj <>stream 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. Considered best for measuring small earthquakes (3.5 M or less). In a concluding class discussion, have groups share their ideas about engineering and one new thing they learned about earthquakes. 0000002658 00000 n You will receive your score and answers at the end. MS-ESS3-2. Dochub is the best editor for changing your documents online. These distances are determined using a travel-time curve, which is a graph of Pand S-wave arrival times (see Figure 13.11). A single recording station can only calculate distance, but not direction; to cover all possibilities, a complete circle is drawn around that station. 0 Millions of people witnessed the motion of the earthquake on television. One seismogram indicates the distance to the epicenter. [k0 |`2dGXGGGd00A(60P-e = F5n -f$ C Locating Earthquake Epicenter Lab - Triangulation sheet for students and/or teachers to use (Slide 6), and answer key (Slide 7). epicenter: A point on the Earth's surface that is directly above the place where the underground forces of an earthquake originate. Make arrangements so that each student group has a computer with Internet access. 15 Bill Nye - Earthquakes Worksheet Key Earthquakes occur when the big pieces of earth's crust, called plates, move a little. PDF Locating an Epicenter Activity - Arkansas Geological Survey Have students turn in their answers for the Explain portion of the worksheet. 0000001562 00000 n Lab Exercise #2: Locating the Epicenter of an Earthquake In this lab exercise, you will locate the epicenter of an earthquake. Reading Strategy. 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. 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. 0000001978 00000 n After reading about earthquakes, open a new window to an Earthquake Simulator at, Follow the simulation instructions. Hand out the worksheets to the groups and direct them to read through the instructions. %PDF-1.3 % 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). As you may know, people have look numerous times for . 0000030504 00000 n (i. Thus technology use varies from region to region and over time. 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. S waves. Alignment agreement: Video Guide / Worksheets and Quizzes for Quizzes and Answer Sheet __ 2. Click for facts and worksheets in PDF! The real-world earthquake data is viewable via a graphical interface using a scaling map. Describe what the "magnitude" of an earthquake is. They make a model of a seismographa measuring device that records an earthquake on a seismogram. In order to determine the location of an earthquake epicenter, seismographs from at least three different places are needed for a particular event. 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. 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. HtA1D41`s(GME$Ke*YdEOYf2-:r. The period of a wave is the time between two adjacent wave peaks. 0000001736 00000 n Facility Name Busine Child ren Information Child Name C. Child Social Security Number Type of Case being filed - Check only one category. A. Seismic waves-waves generated by an earthquake, can move the ground forward and back- answers the question. Place a ruler (or straight edge) on the chart between the points you marked for the distance to the epicenter and the amplitude. Identify P, S, and surface waves on seismograms, Measure amplitude and lag time on seismograms, Use triangulation to accurately locate the epicenter of an earthquake, Accurately report the latitude and longitude of the epicenter, Sea Floor Lab Help with Problem 2 - Tagged, Metamorphic Rocks Lab Instructions - Tagged, Lab exam 2 - Study guide for the second exam regarding all the labs and material covered, Redaccion de textos II Marco n 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. Expert Answer. P and Swaves are body waves and travel, through the interior of the earth. 13. Accessed December 11, 2013. http://earthquake.usgs.gov/aboutus/docs/020204mag_policy.php. 0000002094 00000 n distance = travel time for S waves How does the Mad Scientist. 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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. surface wave? 0000004457 00000 n !D,X2:azTG)kPT~Mj 4>d w@O'. The point where your ruler crosses the middle line on the chart marks the magnitude (strength) of the earthquake. 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 The spot where those three circles intersect is the epicenter (Figure 13.12). (Figure 3):. Pwaves have the greatest velocity and reach theseismic station first. This section explains what earthquakes and faults are and what causes earthquakes. A minimum of three seismic stations is necessary to locate an epicenter. 12), Analyze and interpret data about natural hazards using direct and indirect evidence Swaves arrive at the seismic station after the Pwaves. Seismic Waves. This opens a new window to Michigan Techs UPSeis informational site about earthquakes and seismology. All the arcs should intersect at a common point - the epicenter. How does the period of the P waves compare to the period of the surface waves? All 100,000+ K-12 STEM standards covered in TeachEngineering are collected, maintained and packaged by the Achievement Standards Network (ASN), 0 500 1000 1500 2000 2500 3000 This is determined by the P-and S-wave arrival times. 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. This worksheet focuses on using the p and s graph to find different variables. Of the four Earthquakes Living Lab seismic areas, choose the "Chile" box, as shown in Figure 3. 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. How does distance from the epicenter affect the S-P time interval? Yw8SxGk}X3kfTfW& gk`41#'uf7"G\fsN4^8jC7[+%`qFLFKpFc 0000003254 00000 n 6. To do this, have the students use, Find the epicenter of the earthquake on the map (. 0000005544 00000 n Earthquakes occur along faults, which are cracks in the Earths crust that build tension. 0000000856 00000 n USGS Earthquake Hazards Program 0000002009 00000 n Today, most seismologists no longer follow Richter's original methodology because it does not give reliable results when applied to stronger earthquakes and it was not designed to use data from earthquakes recorded at epicentral distances greater than ~600 km. A.45 seconds B.50 seconds C.55 seconds D.65 seconds Answer Key: D This is determined by the P-and S-wave arrival times. It is slower than the same earthquake's P wave and cannot travel through liquids. 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.