Millions of people witnessed the motion of the earthquake on television. Students learn about factors that engineers take into consideration when designing buildings for earthquake-prone regions. 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. Encourage them to explore all of the Earthquakes Living Lab as they complete the worksheet. 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 0000001861 00000 n Answer the following questions in the spaces provided. pen recorded the arrival of P, S, and surface 12), Evaluate ways that technology can impact individuals, society, and the environment. 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. by. The three seismograms in this activity are unfi ltered station records from a single event that occurred on August 1, 1999. 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. Then do the same for the S-wave. farther from the epicenter of an earthquake? 0000106240 00000 n Do you think we will someday be able to prevent earthquakes? 0000098546 00000 n Subject Areas: 0000002009 00000 n 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. 0000001533 00000 n Since the 1970s, the use of the Richter magnitude scale has largely been replaced in the scientific community by the moment magnitude scale (MMS). (Grades 6 - 8). Activity: Locating an Earthquake Epicenter Lecture 3 Damage from the earthquake was widespread, but the actual location of the earthquake (the epicenter) Scientists use triangulation to find the epicenter of an earthquake. Focal Depth. ' 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 Earthquakes can also cause tsunamis, which are very large waves that can damage coastlines and put coastal residents in danger. (from left to right). 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. 0000006011 00000 n Mark the first arrival of the swave on each seismogram. 0000007783 00000 n Multiply the difference by 8.4 to estimate the distance, in kilometers, from the seismograph station to the epicenter. !5(~q* What did it feel like? Dochub is the best editor for changing your documents online. View Notes - Locating_an_epicenter_activity from SCIENCE Earth Scie at Toms River High North. Must engineers be content with mitigating disasters, instead of preventing them? Three seismographs are needed. Thanks for your feedback! We have answers to the most popular questions from our customers. Student exploration Graphing Skills SE Key Gizmos Explore Learning. Ch Person/Attorney Filing: - Superior Court - Maricopa County - superiorcourt maricopa. 1. 0000030240 00000 n 1. You learned that seismologists determine the distance to the earthquake epicenter using the difference between S and P wave arrival times. 2. Finding the Epicenter Determine the epicenter distance from three different seismographs. The Richter scale was created in the 1930s to assign a single number to quantify the energy released during earthquakes. 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. *The NGSS logo is a registered trademark of WestEd. and S waves depends on the distance from the epicenter of the answer the following question. 13.4: Locating an Earthquake Epicenter - Geosciences LibreTexts Empirical evidence is required to differentiate between cause and correlation and make claims about specific causes and effects. 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. 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). The spot where those three circles intersect is the epicenter (Figure 13.12). 0000008845 00000 n See Answer. What are those limits? 6.17: Locating Earthquake Epicenters - K12 LibreTexts d>(ZvO= Locating An Earthquake Epicenter Lab Answer Key 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. 0000004511 00000 n To abbreviate, use the symbol M (a capital M, plain text, no sub/superscripts) expressed to the nearest 0.1. Activity 4 Locating An Earthquake Epicenter Answers: Fill Out & Sign . Wikipedia, The Free Encyclopedia. Locating Earthquake Epicenter Lab Answer Key buysms de. X!.43p2t!}SLx-3z.KN4X+H\+vk? This is determined by the P-and S-wave arrival times. 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 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: Earth Sciences, General Science Grades: 5th - 8th Types: Activities, Laboratory It is slower than the same earthquake's P wave and cannot travel through liquids. Material is sheared side to side, perpendicular to the direction of wave propagation. Epicenter. Describe the logarithmic nature of the earthquake magnitude scale. 9 - All the arcs should intersect at a common point - the epicenter. Looking at the nomogram, students click on each location data point to see where the three lines intersect to read the estimated magnitude. Last modified July 18, 2012. 0000003991 00000 n Answer Key: Lab 5 Earthquakes - Find People EARTHQUAKES: Epicenter Determination and Seismic Waves . Shear wave from earthquake, moving slower than primary waves, through solid material only. 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. 0000001862 00000 n What was the lag time (in minutes) at this location? All 100,000+ K-12 STEM standards covered in TeachEngineering are collected, maintained and packaged by the Achievement Standards Network (ASN), Refer to the data table and use the difference in arrival times to determine the distance to the earthquake epicenter for Station 2. 0000002658 00000 n Do you agree with this alignment? consider a seismograph stationed 3, (Grades earthquake - shaking and vibration of Earth's surface. 0000004457 00000 n They make a model of a seismographa measuring device that records an earthquake on a seismogram. Activity 4 locating an earthquake epicenter answers: Fill out & sign 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. 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? Use this information to complete the following. 0000033429 00000 n S-P interval: The time interval between the arrivals of P and S waves. The seismometers are shown as green dots. !D,X2:azTG)kPT~Mj 4>d w@O'. Based on your answers to the previous question, what is the lag time for locations that are atrial depolarization. at that station. Figure 2. You will receive your score and answers at the end. Students first triangulate the location of an earthquake's epicenter, then calculate its magnitude. Also called seismometer. endstream endobj 84 0 obj <> endobj 85 0 obj <> endobj 86 0 obj <>stream 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. 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. 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 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. Therefore, the lag Analyze and interpret data on natural hazards to forecast future catastrophic events and inform the development of technologies to mitigate their effects. 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. Key Facts & Information. The, amount of time that passes between the Pwave arrival and the Swave arrival is. (Figure 3):. Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org. Locating an Epicenter Activity - Arkansas Geological Survey How is the magnitude of an earthquake determined? They use three seismographs in a process called triangulation to determine earthquake epicenters. $8.25. Every year, earthquakes cause death and destruction worldwide. How might they use this information? Video Guide / Worksheets and Quizzes for Quizzes and Answer Sheet __ 2. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. 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. locate and label the epicenter of the earthquake on this map. Using 3 seismograms the students will be able to triangulate the epicenter of an earthquake. 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. How does the lag time change as you get farther and Notify the classroom teacher of technology needs (overhead projector). 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 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. Make changes to the sample. Draw your signature, type it, upload its image, or use your mobile device as a signature pad. Locating Earthquake Epicenter Teaching Resources | TPT This section explains what earthquakes and faults are and what causes earthquakes. 1. PS: We do not share personal information or emails with anyone. PDF Finding Epicenters Lab Answer Key Lab Pdf Short for "secondary wave" or "shear wave." Collect any giveaways for the students, such as earthquake posters or plate tectonic fliers. Finding the epicenter of an Earthquake by Ah - Ha Lessons 5.0 (1) $3.00 PDF Activity This lesson teaches the student the process scientists use to locate the epicenter of an EQ. Thanks for your feedback! U.S. Geological Survey, U.S. Department of the Interior. DOC Home - Westerville City Schools aqmd. Accessed December 11, 2013. http://www.sciencecourseware.com/virtualearthquake/, USGS Earthquake Magnitude Policy (implemented on January 18, 2002). 0000008088 00000 n technology, engineering or math (STEM) educational standards. All rights reserved. (Source: USGS, Wikipedia). Civilization and its Discontents (Sigmund Freud), Educational Research: Competencies for Analysis and Applications (Gay L. 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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. 0000053998 00000 n Earthquake Worksheet Answers 0000000016 00000 n 0000031066 00000 n 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 Share with Classes. distance = travel time for S waves 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). ACTIVITY 4.2B Locating an Earthquake Figure 4.5 shows - Chegg travel 3,000 miles. This opens a new window to Michigan Techs UPSeis informational site about earthquakes and seismology. 0000001746 00000 n Locating_an_epicenter_activity - Activity4 - Course Hero Mr Gneiss. EARTHQUAKES: Epicenter Determination and Seismic Waves First locate and mark the three seismic stations on the world map provided below. 0000010002 00000 n Earthquakes occur along faults, which are cracks in the Earths crust that build tension. 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. In order to determine the location of an earthquake epicenter, seismographsfrom at least three different places are needed for a particular event. If the lag time were measured at a location closer to the epicenter, how would it compare Describe the process of triangulation to locate an epicenter. PDF EARTHQUAKES: Epicenter Determination, Seismic Waves, and Hazards - WOU What is an earthquake? 9 - How many minutes elapsed between the arrival of the first P wave and the last measurable Figure 13.10). Nov 2, 2020 Triangulation is used to determine the location of an earthquake. 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. determine the epicenter using the S P (S minus P) method. 0000079769 00000 n Then from the same recordings they determine the earthquake's magnitude, an estimate of the amount of energy released during the earthquake. 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. Considered best for measuring small earthquakes (3.5 M or less). Why might the triangulation method not always produce an exact point (other than your measurement errors)? 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. 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." Use Figure 5 and the travel-time graph in Figure 4 to determine . Seismographs - Keeping Track of Earthquakes | U.S. Geological Survey 0 500 1000 1500 2000 2500 3000 4. fault - a fracture in Earth's crust where the rocks on either side have moved. By looking at the time between the arrivals of the P- and S-waves, one can determine the distance to the earthquake from that station, with longer time intervals indicating longer distance. 0000006538 00000 n 1) Identify the general term for waves released from an earthquake. A.45 seconds B.50 seconds C.55 seconds D.65 seconds Answer Key: D Use the graph to answer the questions that follow. Please answer the following questions using the earthquake video shake, shake, shake. 1,000 miles from the epicenter of an earthquake? 0000030968 00000 n Earthquakes and Seismic Waves - carlisleschools.org 0000001893 00000 n The lag time for any Some places are more prone to earthquakes than others. You can also download it, export it or print it out. 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 HtA1D41`s(GME$Ke*YdEOYf2-:r. 4. If a quake is far from the seismograph, the P-waves arrive long before the S-waves. In Figure 13.9, there is an example seismogram from a station that includes a minor earthquake. seismograph: An instrument that measures motions of the ground, including those of seismic waves generated by earthquakes. 9 - 0000078100 00000 n lag time. S wave: The second seismic wave of an earthquake. How can you locate an earthquake's epicenter? gov For online instructions and current fees click here. Use the process of triangulation to locate an earthquake's epicenter. How Can I Locate the Earthquake Epicenter? | Michigan Technological surface wave? 0000004769 00000 n What about P waves? The epicenter is the point directly above it at the surface of the Earth. from the epicenter will be 14 8. Locating an Earthquake's Epicenter - American Geosciences Institute 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. [N'. The longer the time between the arrival of the P-wave and S-wave, the farther away is the epicenter. Students also investigate which structural designs are most likely to survive an earthquake. n{6c&6NK*U;=9i%nF The answer is the San Andreas Fault. Every earthquake is recorded on numerous seismographs located in different directions. Do you agree with this alignment? 0000055643 00000 n 1. The living lab presents earthquake information through a focus on four active seismic areas and historic earthquakes in those areas. 0000002383 00000 n Geologists use seismic waves to locate an earthquake's epicenter. PDF ActivityEarthquake Location* - Cascadia Earthscope Earthquake and H\0y 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! When the tension becomes too great, the fault slips, causing an earthquake. P and Swaves are body waves and travel, through the interior of the earth. Upload a document. When seismic data is collected from at least three different locations, it can be used to determine the epicenter by where it intersects. 15 Bill Nye - Earthquakes Worksheet Key Earthquakes occur when the big pieces of earth's crust, called plates, move a little. miles from the epicenter of an CH 02 HW - Chapter 2 physics homework for Mastering, Leadership class , week 3 executive summary, I am doing my essay on the Ted Talk titaled How One Photo Captured a Humanitie Crisis https, School-Plan - School Plan of San Juan Integrated School, SEC-502-RS-Dispositions Self-Assessment Survey T3 (1), Techniques DE Separation ET Analyse EN Biochimi 1, Use a travel-time graph to convert lag time into distance. Success is figuring out that the epicenter is just off the coast of Chile, where the three circles intersect. 0000000856 00000 n 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 . Great-circle arcs are drawn on the globe using the distance of the earthquake to the station as a radius. 0000007097 00000 n The distance is in kilometers. How does distance from the epicenter affect the magnitude (height) of the seismograph reading? HTn0MmcHCB For this activity, select the "Chile" box. Figure 1 is a simplified example of a The period of a wave is the time between two adjacent wave peaks. 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. Earthquakes and Volcanoes. 0000001396 00000 n Epicenter is the location on the surface of the Earth directly above where the earthquake starts.
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