The time Why might the triangulation method not always produce an exact point (other than your measurement errors)? The earthquake occurred somewhere along that circle. 0000004769 00000 n One seismogram indicates the distance to the epicenter. endstream endobj startxref The USGS and its partners monitor and report earthquakes, assess earthquake impacts and hazards, and . 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 . To abbreviate, use the symbol M (a capital M, plain text, no sub/superscripts) expressed to the nearest 0.1. This is determined by the P-and S-wave arrival times. 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. %PDF-1.4 % 0000002507 00000 n long will it take, to the nearest 0. minutes, for the first P waves to travel from the epicenter to your station? 0000001777 00000 n 0000006984 00000 n 11 minutes elapsed between the first P wave and the last measurable surface wave. : 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. 74 Earthquake Activity: Locating the Epicenter and Time of Earthquake . 0000033429 00000 n approximate period of the surface waves in seconds? Choose an answer and hit 'next'. 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 n{6c&6NK*U;=9i%nF (Source: USGS). Locating Earthquake Epicenter Lab - Triangulation sheet for students and/or teachers to use (Slide 6), and answer key (Slide 7). Share with Classes. 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. Describe the process of triangulation to locate an epicenter. Earthquakes and Seismic Waves Key Concepts . It's a logarithmic scale from 1 to 10 with each succeeding level representing 10 times as much energy as the last. Nov 2, 2020 Triangulation is used to determine the location of an earthquake. 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. 2. 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. Lab Exercise #2: Locating the Epicenter of an Earthquake In this lab exercise, you will locate the epicenter of an earthquake. 12), computer or other device with Internet access, journal or writing paper for each student. %PDF-1.5 % Locating Earthquake Epicenter Lab Answer Key buysms de. 1. Epicenter Location on Earth's surface directly above the focus of the earthquake 5. In a concluding class discussion, have groups share their ideas about engineering and one new thing they learned about earthquakes. If a quake is far from the seismograph, the P-waves arrive long before the S-waves. Using 3 seismograms the students will be able to triangulate the epicenter of an earthquake. For example, Explains how to find an earthquake epicenter using at least three seismograph stations. 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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. THREE SEISMOGRAMS Seismogram A - New York, NY 1 minute 1. An earthquake is the violent movement of tectonic plates in the Earth's crust. Add to FlexBook Textbook. hbb2b`b``a I @ endstream endobj 62 0 obj <>/Metadata 55 0 R/Pages 51 0 R/StructTreeRoot 57 0 R/Type/Catalog/ViewerPreferences<>>> endobj 63 0 obj <>/Font<>>>/Fields[]>> endobj 64 0 obj <>/Font<>/ProcSet[/PDF/Text]>>/Rotate 0/TrimBox[0.0 0.0 612.0 792.0]/Type/Page>> endobj 65 0 obj <> endobj 66 0 obj <> endobj 67 0 obj <> endobj 68 0 obj <>stream Empirical evidence is required to differentiate between cause and correlation and make claims about specific causes and effects. a project of D2L (www.achievementstandards.org). HTn0MmcHCB The lag time for any important in helping seismologists determine the epicenter of the earthquake. HTAn S wave: The second seismic wave of an earthquake. Shear wave from earthquake, moving slower than primary waves, through solid material only. Have students click on the Earthquakes Living Lab hyperlink in the top left in the earthquakes section. Scientists and engineers around the globe gather data through observation and experimentation and use it to describe and understand how the world works. Earthquakes occur along faults, which are cracks in the Earths crust that build tension. How is the magnitude of an earthquake determined? earthquakes. trailer <<0444DE89825047A1A483C62E98F50868>]>> startxref 0 %%EOF 114 0 obj <>stream *The NGSS logo is a registered trademark of WestEd. Focus. 01. The Earthquakes Living Lab gives students the chance to track earthquakes across the planet and examine where, why and how they are occurring. pen recorded the arrival of P, S, and surface Geology Labs On-Line, Department of Geological Sciences, California State University, Los Angeles, CA. 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. If a quake is near the seismograph, the S-waves arrive shortly after the P-waves. We additionally manage to pay for . EARTHQUAKES: Epicenter Determination and Seismic Waves First locate and mark the three seismic stations on the world map provided below. 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. Though they may weaken with distance, seismographs are sensitive enough to still detect these waves. 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 . In this activity, the epicenter of the earthquake is in the center of Los Angeles, CA. The point beneath Earth's surface where rock breaks under stress and causes an earthquake. Pwaves have the greatest velocity and reach theseismic station first. The calculated distance from each seismometer to the earthquake is shown as a circle. 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. Dochub is the best editor for changing your documents online. As you may know, people have look numerous times for . Therefore, the lag 0000031066 00000 n If a quake is far from the seismograph, the P-waves arrive long before the S-waves. %PDF-1.3 % 107 0 obj <>stream Use mathematical representations of phenomena or design solutions to describe and/or support claims and/or explanations. Place a ruler (or straight edge) on the chart between the points you marked for the distance to the epicenter and the amplitude. After reading about earthquakes, open a new window to an Earthquake Simulator at, Follow the simulation instructions. For lower grades, just introduce the concepts of triangulation and the magnitude scale; a thorough understanding of P and S waves is not vital. 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. Every year, earthquakes cause death and destruction worldwide. PDF. BDF endstream endobj 74 0 obj <>stream 12), Analyze and interpret data about natural hazards using direct and indirect evidence Run through the investigation yourself and record the data, just to see how long it takes. 3000 miles. So the difference in the P- and S-wave arrival times determines the distance between the epicenter and a seismometer. Find 23 millimeters on the right side of the chart and mark that point. 500p;333aXb3 \a.1. 0000004060 00000 n 0000078169 00000 n 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. graph. The epicenter is the point directly above it at the surface of the Earth. Copyright 2023. and S waves depends on the distance from the epicenter of the answer the following question. Point on Earth's surface directly above an earthquake's focus. 0000002383 00000 n 0000009174 00000 n Analyze and interpret data on natural hazards to forecast future catastrophic events and inform the development of technologies to mitigate their effects. Do you agree with this alignment? What types of engineers might use this data the most? Next, have student groups answer the eight questions in the. 0000010002 00000 n Triangulation is required to determine exactly where it happened. [k0 |`2dGXGGGd00A(60P-e = F5n -f$ C Click for facts and worksheets in PDF! 0000008845 00000 n HS]o01j6R0iMm4U=wL8]BE< If a quake is near the seismograph, the S-waves arrive shortly after the P-waves. (i. The farther away the epicenter is, the greater the difference . HTn {0,`K6}(J6]&Q^"!q57y_VQ9fp3/?Mc=KGsrrt:c\$Lh`4}>C>`qcSj0[YpZ_Su(322/N Z./$E )H %C[5ph[BUyGh7|!XPQiDjJ(|BNvylk+g;9G(#Aby>Jcf`XmnwtDD+;Z^I&Sb-4!7oi` L7 endstream endobj 78 0 obj <> endobj 79 0 obj <>stream 0000005081 00000 n Describe what the "magnitude" of an earthquake is. PS: We do not share personal information or emails with anyone. Finding the Epicenter Determine the epicenter distance from three different seismographs. S waves. HtA1D41`s(GME$Ke*YdEOYf2-:r. longer or shorter). approximate period of the surface waves in seconds? Use of the TeachEngineering digital library and this website constitutes acceptance of our Terms of Use and Privacy Policy. The real-world earthquake data is viewable via a graphical interface using a scaling map. to the lag time measured at this location? 0000078100 00000 n 0000003991 00000 n Make an overhead copy of each of the handouts. Activity: Locating an Earthquake Epicenter Lecture 3 Damage from the earthquake was widespread, but the actual location of the earthquake (the epicenter) 0000002658 00000 n 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. To complete the activity, some prior . 0000001533 00000 n Figure 1 is a simplified example of a El trmino tambin puede hacer referencia al ttulo o nombre de alguien a quien se diri, Online Education Strategies (UNIV 1001 - AY2021-T), Advanced Care of the Adult/Older Adult (N566), Advanced Design Studio in Lighting (THET659), Introduction to Health Information Technology (HIM200), Biological Principles II and Lab (BIOL 107/L), PHIL ethics and social responsibility (PHIL 1404), Foundational Concepts & Applications (NR-500), Introduction To Project Management Software (CSBU539), Professional Application in Service Learning I (LDR-461), Advanced Anatomy & Physiology for Health Professions (NUR 4904), Principles Of Environmental Science (ENV 100), Operating Systems 2 (proctored course) (CS 3307), Comparative Programming Languages (CS 4402), Business Core Capstone: An Integrated Application (D083), BSC 2085-Study Guide - Dr. Alfonso Pino - Online course, Lecture notes, lecture all lectures - lecture notes from professor alan klein, Full Graded Quiz Unit 3 - Selection of my best coursework, EES 150 Lesson 2 Our Restless Planet Structure, Energy, & Change, General Chemistry I - Chapter 1 and 2 Notes, 1-2 Short Answer- Cultural Objects and Their Culture, Historia de la literatura (linea del tiempo), ACCT 2301 Chapter 1 SB - Homework assignment. Send activity 4 locating an earthquake epicenter worksheet answers via email, link, or fax. Use Figure 5 and the travel-time graph in Figure 4 to determine . 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. Locating the epicenter of an earthquake worksheet answer key, locating the epicenter of an earthquake worksheet pdf, chapter 7 lab 1 locating epicenters answer key, how many seismographs are needed to locate the epicenter of an earthquake. Also commonly termed the focus. 0000008088 00000 n What is an earthquake? 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! minute apart, represent the passage of time You will analyze the records and locate the earthquake using a method known 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. epicenter of an earthquake, how 0000055643 00000 n Student exploration Graphing Skills SE Key Gizmos Explore Learning. 0000001562 00000 n A. Seismic waves-waves generated by an earthquake, can move the ground forward and back- answers the question. travel 3,000 miles. earthquake though). Ch Person/Attorney Filing: - Superior Court - Maricopa County - superiorcourt maricopa. In order to determine the location of an earthquake epicenter, seismographs from at least three different places are needed for a particular event. Learn more How Can I Locate the Earthquake Epicenter? Locating an Epicenter Activity - Arkansas Geological Survey P wave: The first seismic wave of an earthquake. A circle with a radius of the distance to the quake can be drawn. m>r/Q[6 15 Bill Nye - Earthquakes Worksheet Key Earthquakes occur when the big pieces of earth's crust, called plates, move a little. Short for "primary wave" or "pressure wave." 9 - If the lag time were measured at a location closer to the epicenter, how would it compare When an earthquake strikes, P waves arrive at a seismograph rst and S waves next. Triangulation and Magnitude: Student pairs complete the worksheet, which includes following a tutorial/simulation accessed through the Earthquakes Living Lab. In this activity, students use an online simulationVirtual Earthquakethat is accessible through the Earthquakes Living Lab interface, to locate the epicenter of an earthquake by making simple measurement on three seismograms, recordings of an earthquake's seismic waves detected by instruments (seismographs) far away from the earthquake. What was the lag time (in minutes) at this location? 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). 0000001675 00000 n Answer the following questions in the spaces provided. (Grades Explain the difference between S and P waves, and how their time interval is used to determine the epicenter location. HS-PS4-1. 0000001893 00000 n 1. hbbd``b`$C`q9 X_$_g`bdxc`X Earthquakes & Volcanoes Test Review Answers. Mark the first arrival of the swave on each seismogram. 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 First locate and mark the three seismic stations on the world map provided below. You learned that seismologists determine the distance to the earthquake epicenter using the difference between S and P wave arrival times. What data is used to determine magnitude? 0000005149 00000 n distance = travel time for S waves This opens a new window to Michigan Techs UPSeis informational site about earthquakes and seismology. "`B(R6sj [CX7p+s =#;~ `'kA 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. 0000000956 00000 n Subjects: Earth Sciences, General Science Grades: 5th - 8th Types: Activities, Laboratory from the epicenter will be 14 8. 0000030504 00000 n (Source: USGS, Wikipedia). This is determined by the P-and S-wave arrival times. 1,000 miles from the epicenter of an earthquake? Expert Answer. [*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 0000003254 00000 n Three seismographs are needed. 61 0 obj <> endobj xref Focus (aka Hypocenter) is the location in the Earth where the earthquake starts. 0000001408 00000 n In order to determine the location of an earthquake epicenter, seismographsfrom at least three different places are needed for a particular event. seismograph: An instrument that measures motions of the ground, including those of seismic waves generated by earthquakes. ' 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 Many updates and improvements! What is the time lag for the Seattle, Washington, seismic station? ya{I;W@DgMN2:UtbT=*+cY1.8Vm(u3Zt"J @9TAjJH@H_F3n7\Srdw~gAR#JQGj`ueS! 0000000856 00000 n Epicenter. Figure 13.10). It is slower than the same earthquake's P wave and cannot travel through liquids. Activity4:LocatinganEarthquakeEpicenter Objectives:Ifyoucompletealltheproblems,youshouldbeableto: Identif 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. 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. minutes? All rights reserved. 0000002094 00000 n See Answer. 6. 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) . 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. Do you think we will someday be able to prevent earthquakes? (Source: USGS, Wikipedia). This worksheet focuses on using the p and s graph to find different variables. This section explains what earthquakes and faults are and what causes earthquakes. Material is sheared side to side, perpendicular to the direction of wave propagation. triangulation: A method to determine exactly where an earthquake originates. A single recording station can only calculate distance, but not direction; to cover all possibilities, a complete circle is drawn around that station. A little under 30 seconds, maybe around 26 seconds. 0000079769 00000 n Answer Key: Lab 5 Earthquakes - Find People EARTHQUAKES: Epicenter Determination and Seismic Waves . It is called triangulation because a triangle has three sides, and it takes three seismographs to locate an earthquake. Multiply the difference by 8.4 to estimate the distance, in kilometers, from the seismograph station to the epicenter. Do limits exist on what science can predict? For example, the western United States has earthquakes more frequently and on a larger scale than the eastern part of the country. 0000002009 00000 n How are S and P waves used to determine how far away epicenters are? The spot where those three circles intersect is the epicenter (Figure 13.12). A minimum of three seismic stations is necessary to locate an epicenter. X!.43p2t!}SLx-3z.KN4X+H\+vk? (Grades 6 - 8). Locating the Epicenter of an Earthquake - SE Asia a foldable activity, slide presentation to guide reading, and an answer key! earthquake. Using this resource students find the arrival times of P-waves and S-waves using a seismogram. American Geosciences Institute. Do you agree with this alignment? Show students some of the numerous online animations comparing the movements of P and S waves. Y$Kr;V6[;Dq vg~cx:A[^jCssupwD endstream endobj 80 0 obj <> endobj 81 0 obj <>stream Every earthquake is recorded on numerous seismographs located in different directions. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. 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.
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