activity 4 locating an earthquake epicenter answer key

*The NGSS logo is a registered trademark of WestEd. Download. Millions of people witnessed the motion of the earthquake on television. 13 4 locating an earthquake epicenter geosciences libretexts . If less precision is desired, precede M with a tilde, such as "M ~7" or "magnitude ~6.8.". Develop a solution to a technological problem that has the least negative environmental and social impact. Locating Earthquake Epicenter Lab Answer Key buysms de. U.S. Geological Survey, U.S. Department of the Interior. The American Geosciences Institute represents and serves the geoscience community by providing collaborative leadership and information to connect Earth, science, and people. Record your answer from Lab Exercise #2, Step 1. Make changes to the sample. 12), Analyze and interpret data about natural hazards using direct and indirect evidence 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. Of the four Earthquakes Living Lab seismic areas, choose the "Chile" box, as shown in Figure 3. Locating Earthquake Epicenter Lab - Triangulation sheet for students and/or teachers to use (Slide 6), and answer key (Slide 7). USGS Earthquake Hazards Program (Figure 3):. The vertical lines, spaced one 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. https://people.wou.edu/~taylors/gs104/lab5key.pdf Locating Earthquake Epicenters | CK-12 Foundation Apr 8, 2020 . 0000001604 00000 n Mr Gneiss. Though they may weaken with distance, seismographs are sensitive enough to still detect these waves. Use this information to complete the following. Pwaves have the greatest velocity and reach theseismic station first. The farther a station is from the How might they use this information? (Grades American Geosciences Institute. 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Empirical evidence is required to differentiate between cause and correlation and make claims about specific causes and effects. The hypocenter is the point within the earth where an earthquake rupture starts. 0 500 1000 1500 2000 2500 3000 How Can I Locate the Earthquake Epicenter? | Michigan Technological HS]o01j6R0iMm4U=wL8]BE< Figure 8. distance = travel time for S waves It takes S waves 14. Success is figuring out that the estimated magnitude is 5.9. The epicenter is the point directly above it at the surface of the Earth. 1. 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. !D,X2:azTG)kPT~Mj 4>d w@O'. 0000055643 00000 n Considered best for measuring small earthquakes (3.5 M or less). Epicenter. 0000030504 00000 n Encourage them to explore all of the Earthquakes Living Lab as they complete the worksheet. Students also investigate which structural designs are most likely to survive an earthquake. An earthquake is the violent movement of tectonic plates in the Earth's crust. 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. 0000103591 00000 n "`B(R6sj [CX7p+s =#;~ `'kA HTn0"H@w=s(vxk8OM1px-{$_!o5|CS7RPr#V(0CUa%ZkuT9t};D Jj=.9,z!#@n5YCu>R88tfFRX=iRK follow our easy steps to get your lab activity locating epicenters answer key well prepared rapidly choose the template in the library enter all necessary information in the required llable areas the Lab 8 - earthquake lab - Lab: Locating the Epicenters of Earthquakes For purposes of this activity, the least complicated and probably most accurate approach is to just use the term "magnitude," without needing to say "on the Richter scale" or "on the moment magnitude scale." 0000003254 00000 n (Figure 3):. 0000002840 00000 n 0000003991 00000 n If a quake is far from the seismograph, the P-waves arrive long before the S-waves. 0000002544 00000 n What was the lag time (in minutes) at this location? The longer the time between the arrival of the P-wave and S-wave, the farther away is the epicenter. Engineers first determine where earthquakes are likely to occur, and how severe they are likely to be. As you may know, people have look numerous times for . 0000001562 00000 n Share with Classes. ACTIVITY 4.2B Locating an Earthquake Figure 4.5 shows - Chegg Students learn how engineers build shake tables that simulate the ground motions of the Earth caused by seismic waves in order to test the seismic performance of buildings. Figure 1 is a simplified example of a Follow this simple guide to edit Locating the epicenter of an earthquake worksheet answer key in PDF format online free of charge: Explore all the advantages of our editor right now! The spot where those three circles intersect is the epicenter (Figure 13.12). When the tension becomes too great, the fault slips, causing an earthquake. [*aiLG?+J\QI86~}ooRrr!pm}dk@dBbZPMZlC4C\9^ SM.R\!H+$|+DUzt^w{" %&{KXjT'9yzT^UFe:+f(`PU_9%EW@\)?i qp!\G Z endstream endobj 75 0 obj <>stream The point beneath Earth's surface where rock breaks under stress and causes an earthquake. For example, The spot where those three circles intersect is the epicenter (Figure 13.12). 0000005544 00000 n 83 0 obj <> endobj Focus. (Source: USGS, Wikipedia). Figure 2 is a seismic wave travel-time long will it take, to the nearest 0. minutes, for the first P waves to travel from the epicenter to your station? Refer to the data table and use the difference in arrival times to determine the distance to the earthquake epicenter for Station 2. As you read and complete the activity, take notes so you can complete the. The, amount of time that passes between the Pwave arrival and the Swave arrival is. consider a seismograph stationed 3, 12 Earthquake Location Lab Answer Key Full PDF - www.yvc.moeys.gov Locating_an_epicenter_activity - Activity4 - Course Hero 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. For example, the western United States has earthquakes more frequently and on a larger scale than the eastern part of the country. 0000001533 00000 n Tips: Make sure students are reading the S waves and not the P waves. hb```b````e``n`d@ A 'EF''oquE"ky#:}m;9JmkPt~=unFHy&|X:70 vILZ*|%6mD! Y$Kr;V6[;Dq vg~cx:A[^jCssupwD endstream endobj 80 0 obj <> endobj 81 0 obj <>stream All the arcs should intersect at a common point - the epicenter. Sixty-seven people lost their lives, and property damage was estimated at $6 billion. 5. focus - the point within Earth where an earthquake originates. These natural disasters may be mitigated, however, by insightful and creative engineering. Locating the Epicenter of an Earthquake - SE Asia a foldable activity, slide presentation to guide reading, and an answer key! Student exploration Graphing Skills SE Key Gizmos Explore Learning. hWmo9+[+UH EkNB|6YiaVJ=cRh7{T1R,5LI1$K=s)XR&87@&$LTPLutlcyNuzjf--\?qaXZM&HM.Eg"HnTqSWqN0&~2kf0 Md|d&:zhe)7I? 0000008845 00000 n 1. 0000106240 00000 n Use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media. seismogram. We have answers to the most popular questions from our customers. 15 Bill Nye - Earthquakes Worksheet Key Earthquakes occur when the big pieces of earth's crust, called plates, move a little. earthquake though). trailer <<320C1F98F8FF4795B5CCB8D9E9A0B99B>]/Prev 812054/XRefStm 1396>> startxref 0 %%EOF 93 0 obj <>stream 0000006984 00000 n xb``d``Id`a`Ab@_ :iWGi>|q` Assess their understanding based on the thoroughness of their answers. %PDF-1.3 % Hand out the worksheets to the groups and direct them to read through the instructions. Every year, earthquakes cause death and destruction worldwide. earthquakes. 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. Great exercise for Regents Earth Science. 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. 61 33 100 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. Based on your answers to the previous question, what is the lag time for locations that are PDF Example Answers - TeachEngineering 0000004511 00000 n The USGS and its partners monitor and report earthquakes, assess earthquake impacts and hazards, and . The answer is the San Andreas Fault. 0000002009 00000 n To abbreviate, use the symbol M (a capital M, plain text, no sub/superscripts) expressed to the nearest 0.1. 0000001675 00000 n !5(~q* 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. 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. How does distance from the epicenter affect the magnitude (height) of the seismograph reading? It is called triangulation because a triangle has three sides, and it takes three seismographs to locate an earthquake. Ask students what fault they think caused this earthquake. Question 5 of 22 4.55/ 4.55 Points Questions 5 through 11 are based on Lab Exercise #2: Locating the Epicenter of an Earthquake. Shear wave from earthquake, moving slower than primary waves, through solid material only. 0000033429 00000 n Locating An Earthquake Epicenter Lab Answers Thank you for reading Locating An Earthquake Epicenter Lab Answers . Focus (aka Hypocenter) is the location in the Earth where the earthquake starts. 0000001746 00000 n Do you think we will someday be able to prevent earthquakes? Three seismographs are needed. 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 Add to FlexBook Textbook. 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. velocity, amplitude, and frequency of the Finding the Epicenter Determine the epicenter distance from three different seismographs. Section A - Operator Information 1. epicenter of an earthquake, how Thanks for your feedback! Seismic stations detect earthquakes by the tracings made on seismographs. Answer Key: Lab 5 Earthquakes - Find People EARTHQUAKES: Epicenter Determination and Seismic Waves . The farther away the epicenter is, the greater the difference . epicenter: A point on the Earth's surface that is directly above the place where the underground forces of an earthquake originate. As discussed earlier in this lesson, this method of determining the epicenter of an . PDF EARTHQUAKES: Epicenter Determination, Seismic Waves, and Hazards - WOU 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. Lab Activity Locating Epicenters Flashcards | Quizlet 0000031066 00000 n 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. 0000006011 00000 n waves from a distant earthquake. Nov 2, 2020 Triangulation is used to determine the location of 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! Please answer the following questions using the earthquake video shake, shake, shake. miles from the epicenter of an 0000002383 00000 n m>r/Q[6 activity illustrates how the epicenter of an earthquake is found. This activity is designed around the Earthquakes Living Lab, a resource and online interface that uses real-time U.S. Geological Survey seismic data from around the world. In order to determine the location of an earthquake epicenter, seismographsfrom at least three different places are needed for a particular event. 0000005149 00000 n Earthquakes Living Lab: Finding Epicenters & Measuring Magnitudes. 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. The living lab presents earthquake information through a focus on four active seismic areas and historic earthquakes in those areas. As the drum rotated, the Triangulation to Locate an Earthquake By Earthquake Hazards Original Thumbnail Medium Detailed Description Triangulation can be used to locate an earthquake. The calculated distance from each seismometer to the earthquake is shown as a circle. 0000006538 00000 n Seismographs - Keeping Track of Earthquakes | U.S. Geological Survey seismograph: An instrument that measures motions of the ground, including those of seismic waves generated by earthquakes. 4. 3000 miles. The USGS now uses the MMS to estimate magnitudes for all modern large earthquakes. Seismic Waves. 0000030968 00000 n Some places are more prone to earthquakes than others. 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"? The seismometers are shown as green dots. Thanks for your feedback! PDF Finding Epicenters Lab Answer Key Lab Pdf Run through the investigation yourself and record the data, just to see how long it takes. $8.25. See Answer. P and Swaves are body waves and travel, through the interior of the earth. 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. 0000001978 00000 n 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. The western U.S. has more faults than the eastern U.S., and therefore the western U.S. has more earthquakes. S waves. longer or shorter). 9 - Analyze and interpret data on natural hazards to forecast future catastrophic events and inform the development of technologies to mitigate their effects. 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? (Grades and S waves to travel any distance up to What is an earthquake? Why might the triangulation method not always produce an exact point (other than your measurement errors)? How does the Mad Scientist. 1. (i. approximate period of the surface waves in seconds? Conclude the activity with a class discussion (and perhaps homework questions) to share ideas and answers, as described in the Assessment section. To complete the activity, some prior . Students first triangulate the location of an earthquake's epicenter, then calculate its magnitude. If a quake is near the seismograph, the S-waves arrive shortly after the P-waves. 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. Earthquakes and Seismic Waves Key Concepts . Triangulation is required to determine exactly where it happened. There are two sets of data and maps to do this activity/ lab for than once. 0000001143 00000 n Describe the process of triangulation to locate an epicenter. First locate and mark the three seismic stations on the world map provided below. How is the magnitude of an earthquake determined? During an earthquake, seismic waves are sent all over the globe. atrial depolarization. 0000001408 00000 n Using this resource students find the arrival times of P-waves and S-waves using a seismogram. You will analyze the records and locate the earthquake using a method known Every earthquake is recorded on numerous seismographs located in different directions. A little under 30 seconds, maybe around 26 seconds. The vertical lines, spaced one, minute apart, represent the passage of time, (from left to right). 9 - %PDF-1.4 % 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. 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) . 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). Triangulation and Magnitude: Student pairs complete the worksheet, which includes following a tutorial/simulation accessed through the Earthquakes Living Lab. distance from transducer to the focal point. Place a ruler (or straight edge) on the chart between the points you marked for the distance to the epicenter and the amplitude. 12), computer or other device with Internet access, journal or writing paper for each student. 0000005081 00000 n For this activity, select the "Chile" box. 0000001861 00000 n Ch Person/Attorney Filing: - Superior Court - Maricopa County - superiorcourt maricopa. 1) Identify the general term for waves released from an earthquake. Geologists use seismic waves to locate an earthquake's epicenter. 13. The distance to the earthquake epicenter is then determined using the "Earthquake P-Wave and S-Wave Travel Time" graph. To make a magnitude determination, two measurements are needed: the S-P interval (already determined earlier in the tutorial) and the maximum amplitude of the seismic waves. 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. Details. pen recorded the arrival of P, S, and surface The distance is in kilometers. PDF Locating An Earthquake Epicenter Lab Answers - Full PDF Accessed December 11, 2013. http://en.wikipedia.org/wiki/Moment_magnitude_scale, Novak, Gary. Answer the following questions in the spaces provided. Next, have student groups answer the eight questions in the. Material is sheared side to side, perpendicular to the direction of wave propagation. 0000004224 00000 n Earthquake Worksheet Answers The period of P waves is shorter, than the period of surface waves. 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. Subjects: Focal Depth. 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. In Figure 13.9, there is an example seismogram from a station that includes a minor earthquake. 0000030240 00000 n 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? The Earthquakes Living Lab gives students the chance to track earthquakes across the planet and examine where, why and how they are occurring. 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). Use this information to complete the following. Locating_an_epicenter_activity-MB.pdf - Activity 4: Locating an Do you agree with this alignment? While no one can predict earthquakes, knowing the intensities, frequencies and locations of past earthquakes and fault planes helps us to better anticipate the locations and forces to expect, so we can do our best to prepare our communities and infrastructure to withstand them safely.

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