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0000001736 00000 n Epicenter Location on Earth's surface directly above the focus of the earthquake 5. You can also download it, export it or print it out. 0000106240 00000 n If your seismograph station is 0000001862 00000 n Why might the triangulation method not always produce an exact point (other than your measurement errors)? Activity: Locating an Earthquake Epicenter Lecture 3 Damage from the earthquake was widespread, but the actual location of the earthquake (the epicenter) Tips: Make sure students are reading the S waves and not the P waves. Ask students what fault they think caused this earthquake. 0000103591 00000 n Objective Use data from seismograms to locate the epicenters of earthquakes. 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. How are S and P waves used to determine how far away epicenters are? Finding the epicenter worksheet answer key. 0000006984 00000 n First locate and mark the three seismic stations on the world map provided below. P and Swaves are body waves and travel, through the interior of the earth. Free K-12 standards-aligned STEM curriculum for educators everywhere. Material is sheared side to side, perpendicular to the direction of wave propagation. P and Swaves are body waves and travelthrough the interior of the earth. During an earthquake, seismic waves are sent all over the globe. xb``d``Id`a`Ab@_ :iWGi>|q` Next, have student groups answer the eight questions in the. After reading about earthquakes, open a new window to an Earthquake Simulator at, Follow the simulation instructions. Sign, fax and printable from PC, iPad, tablet or mobile with pdfFiller Note-taking Worksheet. In this 1-to-10 logarithmic scale, each succeeding level representing 10 times as much energy as the last. 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). A circle with a radius of the distance to the quake can be drawn. 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. Where the 3 circles intersect is the approximate location to the epicenter of the earthquake. Then do the same for the S-wave. 0000008845 00000 n Even though the scale formulae are different, MMS retains the familiar continuum of magnitude values defined by the older scale. Add to Library. When an earthquake strikes, P waves arrive at a seismograph rst and S waves next. distance = travel time for S waves 0000005149 00000 n Make changes to the sample. %PDF-1.3 % Triangulation is required to determine exactly where it happened. Then from the same recordings they determine the earthquake's magnitude, an estimate of the amount of energy released during the earthquake. Activity 4: Locating an Earthquake Epicenter, The three basic types of seismic wave generated by an earthquake at its focus are P, waves, Swaves, and Surface waves. 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 lag time for any In Figure 13.9, there is an example seismogram from a station that includes a minor earthquake. Take a few minutes to read the information on the left side of this page for the 2010 earthquake off the coast of central Chile. If a quake is near the seismograph, the S-waves arrive shortly after the P-waves. 4. fault - a fracture in Earth's crust where the rocks on either side have moved. The distance to the earthquake epicenter is then determined using the "Earthquake P-Wave and S-Wave Travel Time" graph. 0000004511 00000 n Students first triangulate the location of an earthquake's epicenter, then calculate its magnitude. Also commonly termed the focus. 0000001562 00000 n Run through the investigation yourself and record the data, just to see how long it takes. The answer is the San Andreas Fault. 74 Earthquake Activity: Locating the Epicenter and Time of Earthquake . It travels faster than the same earthquake's S wave (almost double the speed) and is similar to sound waves. 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. Activity4:LocatinganEarthquakeEpicenter Objectives:Ifyoucompletealltheproblems,youshouldbeableto: Identif Have students turn in their answers for the Explain portion of the worksheet. Nov 2, 2020 Triangulation is used to determine the location of an earthquake. While earthquake locations are normally done with a computer that can quickly determine the paths of seismic waves through the Earth to many seismic stations, 15 Introduction to Geology Chapter Worksheet . Earthquakes & Volcanoes Test Review Answers. In order to determine the location of an earthquake epicenter, seismographs from at least three different places are needed for a particular event. Seismic stations detect earthquakes by the tracings made on seismographs. hbbd``b`$C`q9 X_$_g`bdxc`X (i. 1,000 miles from the epicenter of an earthquake? HS]o01j6R0iMm4U=wL8]BE< surface wave? Once three seismographs have been located, find the time interval between the arrival of the P-wave and the arrival of the S-wave. Success is figuring out that the estimated magnitude is 5.9. In this activity, the epicenter of the earthquake is in the center of Los Angeles, CA. Considered best for measuring small earthquakes (3.5 M or less). How many minutes elapsed between the arrival of the first P wave and the last measurable Therefore, the lag 0000005544 00000 n Richter magnitude scale: An earthquake measurement scale created in the 1930s to assign a single number to quantify the energy released during earthquakes. Figure 8. minute apart, represent the passage of time Multiply the difference by 8.4 to estimate the distance, in kilometers, from the seismograph station to the epicenter. Conclude the activity with a class discussion (and perhaps homework questions) to share ideas and answers, as described in the Assessment section. earthquakes. They make a model of a seismographa measuring device that records an earthquake on a seismogram. 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. 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"? Facility Name Busine Child ren Information Child Name C. Child Social Security Number Type of Case being filed - Check only one category. Video Guide / Worksheets and Quizzes for Quizzes and Answer Sheet __ 2. X!.43p2t!}SLx-3z.KN4X+H\+vk? Choose an answer and hit 'next'. 5. focus - the point within Earth where an earthquake originates. HS-PS4-1. 83 0 obj <> endobj Students also investigate which structural designs are most likely to survive an earthquake. What was the lag time (in minutes) at this location? Great exercise for Regents Earth Science. Earthquakes and Seismic Waves Key Concepts . Locating an Epicenter through Triangulation of Seismic Data- Remote/Hybrid/Live. Yw8SxGk}X3kfTfW& gk`41#'uf7"G\fsN4^8jC7[+%`qFLFKpFc Key Facts & Information. *The NGSS logo is a registered trademark of WestEd. Copyright USGS http://earthquake.usgs.gov/learn/kids/eqscience.php. Apr 8, 2020 One seismogram indicates the distance to the epicenter. When the tension becomes too great, the fault slips, causing an earthquake. 0000115324 00000 n Geologists use seismic waves to locate an earthquake's epicenter. 2. Legal. a project of D2L (www.achievementstandards.org). If a quake is near the seismograph, the S-waves arrive shortly after the P-waves. 17 Station St., Ste 3 Brookline, MA 02445. S waves. 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 . How does the period of the P waves compare to the period of the surface waves? 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. How does the Mad Scientist. Locating an Epicenter Activity - Arkansas Geological Survey PS: We do not share personal information or emails with anyone. Finding the Epicenter Determine the epicenter distance from three different seismographs. =Cv :~4yrXP 62{_,*Uq/O-oUNBr-$y~:G},#3e^CS6U*_zVGY7ZNUWk2f?? {%!,"{u5E&OOqA_"/uxn-kx+Vz*EQb)Q 0000078169 00000 n time for any point that is 3,000 miles Wikipedia, The Free Encyclopedia. Ch Person/Attorney Filing: - Superior Court - Maricopa County - superiorcourt maricopa. If a quake is far from the seismograph, the P-waves arrive long before the S-waves. (Grades Using 3 seismograms the students will be able to triangulate the epicenter of an earthquake. Though they may weaken with distance, seismographs are sensitive enough to still detect these waves. What is an earthquake? minutes? approximate period of the surface waves in seconds? The travel-time graph 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. This opens a new window to Michigan Techs UPSeis informational site about earthquakes and seismology. 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. endstream endobj 84 0 obj <> endobj 85 0 obj <> endobj 86 0 obj <>stream 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 simulation renders three circles on a map and directs students to find the epicenter. 0000053998 00000 n Earthquakes and Volcanoes. P wave: The first seismic wave 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! 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. consider a seismograph stationed 3, 01. 0000002658 00000 n longer or shorter). 9 - Find 23 millimeters on the right side of the chart and mark that point. /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?? 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 0000003966 00000 n miles from the epicenter of an 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. determine the epicenter using the S P (S minus P) method. 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. A little under 30 seconds, maybe around 26 seconds. Use Figure 4.5 and the travel-time graph in Figure 4.4 to determine the distance between each station and THREE SEISMOGRAMS the epicenter. Students learn what causes earthquakes, how we measure and locate them, and their effects and consequences. A.45 seconds B.50 seconds C.55 seconds D.65 seconds Answer Key: D 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. inch = 500 km. 61 33 0000002094 00000 n Figure 2. 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. Student exploration Graphing Skills SE Key Gizmos Explore Learning. 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. Thus technology use varies from region to region and over time. 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. 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Some places are more prone to earthquakes than others. minutes and P waves 8 minutes to The distance is in kilometers. Through the online Earthquakes Living Lab, student pairs explore various types of seismic waves and the differences between shear waves and compressional waves. Explains how to find an earthquake epicenter using at least three seismograph stations. Describe what the "magnitude" of an earthquake is. The nations most famous fault is the San Andreas Fault, which runs along a north-south trend in southern California, and happens to run directly through Los Angeles. As the drum rotated, the 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. Geology Labs On-Line, Department of Geological Sciences, California State University, Los Angeles, CA. We additionally manage to pay for . Step 1: ans- d) 65 seconds Ste . For example, the western United States has earthquakes more frequently and on a larger scale than the eastern part of the country. ' 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 0000001777 00000 n 0000001978 00000 n The seismometers are shown as green dots. If you can't find an answer to your question, please contact us. located 1,000 miles from the Success is figuring out that the epicenter is just off the coast of Chile, where the three circles intersect. If the lag time were measured at a location closer to the epicenter, how would it compare What is the 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. Focus (aka Hypocenter) is the location in the Earth where the earthquake starts. 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. How far do S waves travel in 5 All rights reserved. Dochub is the best editor for changing your documents online. 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. Alignment agreement: The western U.S. has more faults than the eastern U.S., and therefore the western U.S. has more earthquakes. 0000098546 00000 n 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. 1. The USGS and its partners monitor and report earthquakes, assess earthquake impacts and hazards, and . After this activity, students should be able to: Each TeachEngineering lesson or activity is correlated to one or more K-12 science, 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. 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. 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 How is the magnitude of an earthquake determined? 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. 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. 2. P wave. 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! Based on your answers to the previous question, what is the lag time for locations that are 0000010002 00000 n As you read and complete the activity, take notes so you can complete the. HTn0MmcHCB %PDF-1.5 % 0000004060 00000 n farther from the epicenter of an earthquake? 11 minutes elapsed between the first P wave and the last measurable surface wave. 12), Evaluate ways that technology can impact individuals, society, and the environment. 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. earthquake lab lab: locating the epicenters of earthquakes objective measurable learning outcomes use data from seismograms to locate the epicenters of Skip to document Ask an Expert Sign inRegister Sign inRegister Home Ask an ExpertNew My Library Discovery Institutions Western Governors University Southern New Hampshire University We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. As discussed earlier in this lesson, this method of determining the epicenter of an . Explain the difference between S and P waves, and how their time interval is used to determine the epicenter location. Swaves arrive at the seismic station after the Pwaves. at that station. Use Figure 5 and the travel-time graph in Figure 4 to determine . 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. Triangulation and Magnitude: Student pairs complete the worksheet, which includes following a tutorial/simulation accessed through the Earthquakes Living Lab. 0000008088 00000 n Earthquakes can also cause tsunamis, which are very large waves that can damage coastlines and put coastal residents in danger. Also called seismometer. Virtual Earthquake (tutorial/simulation) 1996. 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. Last modified July 18, 2012. 0000002250 00000 n If less precision is desired, precede M with a tilde, such as "M ~7" or "magnitude ~6.8.". different types of seismic waves. 0000000856 00000 n 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. Graphs, charts, and images can be used to identify patterns in data. 0000000956 00000 n The epicenter is the point directly above it at the surface of the Earth. [k0 |`2dGXGGGd00A(60P-e = F5n -f$ C Students learn about the types of seismic waves produced by earthquakes and how they move through the Earth. Use this information to complete the following. 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. What data is used to determine magnitude? Make arrangements so that each student group has a computer with Internet access. Describe the logarithmic nature of the earthquake magnitude scale. approximate period of the surface waves in seconds? 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. For this activity, select the "Chile" box. ?t?s=Yt '_( endstream endobj 76 0 obj <>stream Please answer the following questions using the earthquake video shake, shake, shake. Practicing this technique, the students work several problems on a map of the US. between arrival of P and S waves is called Accessed December 11, 2013. http://earthquake.usgs.gov/aboutus/docs/020204mag_policy.php. In order to determine the location of an earthquake epicenter, seismographsfrom at least three different places are needed for a particular event. (from left to right). 6. 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? One seismogram indicates the distance to the epicenter. 15 Bill Nye - Earthquakes Worksheet Key Earthquakes occur when the big pieces of earth's crust, called plates, move a little. All the arcs should intersect at a common point - the epicenter. The farther a station is from the The spot where those three circles intersect is the epicenter (Figure 13.12). (Figure 3):. : 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. PDF. Seismic Waves. Collect any giveaways for the students, such as earthquake posters or plate tectonic fliers. Click for facts and worksheets in PDF! You learned that seismologists determine the distance to the earthquake epicenter using the difference between S and P wave arrival times. 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? Students learn about factors that engineers take into consideration when designing buildings for earthquake-prone regions. How do we determine the epicenter of an earthquake? Download. earthquake. Thanks for your feedback! Mr Gneiss. important in helping seismologists determine the epicenter of the earthquake. All 100,000+ K-12 STEM standards covered in TeachEngineering are collected, maintained and packaged by the Achievement Standards Network (ASN), 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 Use the process of triangulation to locate an earthquake's epicenter. Do you agree with this alignment? DocHub v5.1.1 Released! This is determined by the P-and S-wave arrival times. Details. (Grades velocity, amplitude, and frequency of the Activity 4: Locating an Earthquake Epicenter Examining Seismograms The three basic types of seismic wave generated by an earthquake at its focus are Pwaves, Swaves, and Surface waves. What is an earthquake? (Figure 3):. The magnitude determination is based on seismic data. Show students some of the numerous online animations comparing the movements of P and S waves. This section explains what earthquakes and faults are and what causes earthquakes. Use the graph to answer the questions that follow. john henry cartoon 1960s,