0000004511 00000 n Solved ACTIVITY 2B Locating an Earthquake Figure 5 shows - Chegg Figure 2 is a seismic wave travel-time The vertical lines, spaced one (, Find the S-P interval for each seismogram and record answers in the S-P column of, Find the distance to the epicenter (in kilometers) from each recording station and record answers in Table 1. The Earthquakes Living Lab gives students the chance to track earthquakes across the planet and examine where, why and how they are occurring. HtA1D41`s(GME$Ke*YdEOYf2-:r. How is the magnitude of an earthquake determined? 0000000016 00000 n 6. Develop a solution to a technological problem that has the least negative environmental and social impact. This is determined by the P-and S-wave arrival times. Why might the triangulation method not always produce an exact point (other than your measurement errors)? PDF Finding Epicenters and Measuring Magnitudes Worksheet When the tension becomes too great, the fault slips, causing an earthquake. Edit your locating an earthquake epicenter worksheet answers online. Locating Earthquake Epicenter Lab Answer Key buysms de. (Source: USGS). hWmo9+[+UH EkNB|6YiaVJ=cRh7{T1R,5LI1$K=s)XR&87@&$LTPLutlcyNuzjf--\?qaXZM&HM.Eg"HnTqSWqN0&~2kf0 Md|d&:zhe)7I? Have students turn in their answers for the Explain portion of the worksheet. Once three seismographs have been located, find the time interval between the arrival of the P-wave and the arrival of the S-wave. What data is used to determine magnitude? 0000009174 00000 n 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. triangulation: A method to determine exactly where an earthquake originates. !5(~q* Seismograms Accessed December 11, 2013. http://earthquake.usgs.gov/aboutus/docs/020204mag_policy.php. We additionally manage to pay for . 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. The simulation renders three circles on a map and directs students to find the epicenter. Facility Name Busine Child ren Information Child Name C. Child Social Security Number Type of Case being filed - Check only one category. Section A - Operator Information 1. If a quake is near the seismograph, the S-waves arrive shortly after the P-waves. Objective Use data from seismograms to locate the epicenters of earthquakes. View Notes - Locating_an_epicenter_activity from SCIENCE Earth Scie at Toms River High North. 0000001408 00000 n 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. Based on your answers to the previous question, what is the lag time for locations that are To complete the activity, some prior . P and Swaves are body waves and travel, through the interior of the earth. As you read and complete the activity, take notes so you can complete the. Locating Earthquake Epicenters ( Read ) | Earth Science Locating_an_epicenter_activity - Activity4 - Course Hero Q(_?!6YV3B"\'9:4gTp*7^/P.X!skfkJ)1nG#a\{UD+iWM+ rQR]9SFTUPlM#"c:;tnsQPlu]Uyv?Ge}W;8cMA/x}'5clES~+}S+N7}wQ:/BkmI^" 5oqaBC[TRjq4.e}F:SQg{=u\xcg~EaZKReoC?oahJ` 'w endstream endobj 77 0 obj <>stream Expert Answer. 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. Finding the epicenter worksheet answer key. All 100,000+ K-12 STEM standards covered in TeachEngineering are collected, maintained and packaged by the Achievement Standards Network (ASN), 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 0000004457 00000 n %PDF-1.3 % In the ASN, standards are hierarchically structured: first by source; e.g., by state; within source by type; e.g., science or mathematics; The process is called triangulation. What did it feel like? 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. Tracings made at three separate seismic stations are needed to locate an earthquake epicenter. X!.43p2t!}SLx-3z.KN4X+H\+vk? (Figure 3):. Introduction: Before student pairs look at the Earthquakes Living Lab, direct them to complete the Engage section of the Finding Epicenters and Measuring Magnitudes Worksheet, which asks them to apply any prior knowledge and/or speculate as to what the Richter magnitude scale is and what an epicenter is. trailer <<320C1F98F8FF4795B5CCB8D9E9A0B99B>]/Prev 812054/XRefStm 1396>> startxref 0 %%EOF 93 0 obj <>stream Review their answers to assess their base knowledge of the subject matter. Some places are more prone to earthquakes than others. 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. Have students click on the Earthquakes Living Lab hyperlink in the top left in the earthquakes section. How many minutes elapsed between the arrival of the first P wave and the last measurable Locating_an_epicenter_activity-MB.pdf - Activity 4: Locating an 0000001777 00000 n 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. How might they use this information? 87 0 obj <> endobj xref 87 28 0000000016 00000 n Activity 4 Locating An Earthquake Epicenter Answers: Fill Out & Sign . It is called triangulation because a triangle has three sides, and it takes three seismographs to locate an earthquake. P and S arrivals, you can now locate an earthquake your answers below. This opens a new window to Michigan Techs UPSeis informational site about earthquakes and seismology. For upper grades, have students work individually, do two of the three seismic area tutorials, and look up historical earthquakes to learn their magnitudes, and make data tables or graphs with this information. (5 minutes) Discuss how gathering information on epicenters can be applied. hbbd``b`$C`q9 X_$_g`bdxc`X Locating Earthquake Epicenter Teaching Resources | TPT 0000004224 00000 n Click on New Document and select the file importing option: upload Locating the epicenter of an earthquake worksheet answer key from your device, the cloud, or a protected link. The time =Cv :~4yrXP 62{_,*Uq/O-oUNBr-$y~:G},#3e^CS6U*_zVGY7ZNUWk2f?? {%!,"{u5E&OOqA_"/uxn-kx+Vz*EQb)Q d>(ZvO= (Grades Details. 0000001978 00000 n Though they may weaken with distance, seismographs are sensitive enough to still detect these waves. Note the differences in 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. A single recording station can only calculate distance, but not direction; to cover all possibilities, a complete circle is drawn around that station. approximate period of the surface waves in seconds? What is the 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. The answer is the San Andreas Fault. Epicenter Location on Earth's surface directly above the focus of the earthquake 5. The farther away the epicenter is, the greater the difference . BDF endstream endobj 74 0 obj <>stream graph. 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! epicenter of an earthquake, how 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. PDF EARTHQUAKES: Epicenter Determination, Seismic Waves, and Hazards - WOU Wikipedia, The Free Encyclopedia. 0000001396 00000 n 0000003991 00000 n Locating Earthquake Epicenter Lab - Triangulation sheet for students and/or teachers to use (Slide 6), and answer key (Slide 7). Using 3 seismograms the students will be able to triangulate the epicenter of an 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. 0000030240 00000 n Subject Areas: Epicenter is the location on the surface of the Earth directly above where the earthquake starts. For example, the western United States has earthquakes more frequently and on a larger scale than the eastern part of the country. Practice with Triangulation: Locating an earthquake epicenter. Locating Earthquake Epicenter Worksheet Answer Key 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. USGS Earthquake Hazards Program Collect any giveaways for the students, such as earthquake posters or plate tectonic fliers. Focus. 5. focus - the point within Earth where an earthquake originates. trailer <<0444DE89825047A1A483C62E98F50868>]>> startxref 0 %%EOF 114 0 obj <>stream 0000001675 00000 n 0000005149 00000 n Assess their understanding based on the thoroughness of their answers. In a concluding class discussion, have groups share their ideas about engineering and one new thing they learned about earthquakes. 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. Activity: Locating an Earthquake Epicenter Lecture 3 Damage from the earthquake was widespread, but the actual location of the earthquake (the epicenter) What is the time lag for the Seattle, Washington, seismic station? Triangulation and Magnitude: Student pairs complete the worksheet, which includes following a tutorial/simulation accessed through the Earthquakes Living Lab. Triangulation is required to determine exactly where it happened. Use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media. One seismogram indicates the distance to the epicenter. Activity4:LocatinganEarthquakeEpicenter Objectives:Ifyoucompletealltheproblems,youshouldbeableto: Identif The American Geosciences Institute represents and serves the geoscience community by providing collaborative leadership and information to connect Earth, science, and people. 0000001861 00000 n to the lag time measured at this location? Earthquakes & Volcanoes Test Review Answers. 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. The period of a wave is the time between two adjacent wave peaks. Many updates and improvements! Encourage them to explore all of the Earthquakes Living Lab as they complete the worksheet. [N'. 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. As you may know, people have look numerous times for . 13.4: Locating an Earthquake Epicenter - Geosciences LibreTexts 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. Scientists use triangulation to find the epicenter of an earthquake. These distances are determined using a travel-time curve, which is a graph of Pand S-wave arrival times (see Figure 13.11). The Richter scale was created in the 1930s to assign a single number to quantify the energy released during earthquakes. This investigation is considered generally safe to do with students. So the difference in the P- and S-wave arrival times determines the distance between the epicenter and a seismometer. 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. The distance is in kilometers. Focal Depth. Virtual Earthquake (tutorial/simulation) 1996. If the lag time were measured at a location closer to the epicenter, how would it compare technology, engineering or math (STEM) educational standards. The epicenter is the point directly above it at the surface of the Earth. 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. Travel-time graphDistance in Miles, Copyright 2023 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01, seismogram. It is slower than the same earthquake's P wave and cannot travel through liquids. How far do S waves travel in 5 Legal. (, Have any of you ever experienced an earthquake or know anyone who has? gov For online instructions and current fees click here. Mark the first arrival of the swave on each seismogram. This is determined by the P-and S-wave arrival times. Geologists use seismic waves to locate an earthquake's epicenter. minute apart, represent the passage of time %PDF-1.5 % Answers to the Finding the Epicenter Gizmos Lab - Name: Earthquakes 2 Use this information to complete the following. m>r/Q[6 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. Explains how to find an earthquake epicenter using at least three seismograph stations. Next, have student groups answer the eight questions in the. Type text, add images, blackout confidential details, add comments, highlights and more. Accessed December 11, 2013. http://www.sciencecourseware.com/virtualearthquake/, USGS Earthquake Magnitude Policy (implemented on January 18, 2002). Epicenter. Earthquake Worksheet Answers 0000001143 00000 n Another method of locating an earthquake is to use the P-wave arrival-time minus origin-time (P - O) interval instead of distance. 0000008845 00000 n 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 Thanks for your feedback! 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. Use this information to complete the following. https://people.wou.edu/~taylors/gs104/lab5key.pdf Locating Earthquake Epicenters | CK-12 Foundation Apr 8, 2020 . 0000007783 00000 n (Grades 13 4 locating an earthquake epicenter geosciences libretexts . 12), Evaluate ways that technology can impact individuals, society, and the environment. The distance to the earthquake epicenter is then determined using the "Earthquake P-Wave and S-Wave Travel Time" graph. This worksheet focuses on using the p and s graph to find different variables. Section 8.1 What Is an Earthquake? 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. Please answer the following questions using the earthquake video - shake, shake, shake. xb``d``Id`a`Ab@_ :iWGi>|q` Direct student pairs to independently complete the tutorial/simulation to find an epicenter location via the triangulation method and compute the earthquake magnitude: The simulation directs students to look at three simplified seismograms from seismic stations in Chile (Talca, Santiago, Osorno) and select the correct measurements of the S-P intervals. For lower grades, just introduce the concepts of triangulation and the magnitude scale; a thorough understanding of P and S waves is not vital. Thanks for your feedback! Thus technology use varies from region to region and over time. 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). 4. Solved Lab Exercise #2: Locating the Epicenter of an - Chegg Describe what the "magnitude" of an earthquake is. Resources. Share with Classes. 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." Do you think we will someday be able to prevent earthquakes? Please answer the following questions using the earthquake video shake, shake, shake. Sixty-seven people lost their lives, and property damage was estimated at $6 billion. How does the lag time change as you get farther and It takes S waves 14. 0000005081 00000 n They use three seismographs in a process called triangulation to determine earthquake epicenters. 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! Seismic Waves. Answer the following questions in the spaces provided. Richter scale Method of earthquake measurement based on the amplitude of seismic . 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. 0000007097 00000 n 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. The wavelength and frequency of a wave are related to one another by the speed of travel of the wave, which depends on the type of wave and the medium through which it is passing. Locating an Epicenter through Triangulation of Seismic Data- Remote/Hybrid/Live. The period of P waves is shorter, than the period of surface waves. How are S and P waves used to determine how far away epicenters are? 0000002507 00000 n distance = travel time for S waves In this activity, the epicenter of the earthquake is in the center of Los Angeles, CA. Also called seismometer. The spot where those three circles intersect is the epicenter (Figure 13.12). U.S. Geological Survey, U.S. Department of the Interior. locating the epicenter of an earthquake activity - TeachersPayTeachers Show students some of the numerous online animations comparing the movements of P and S waves. Video Guide / Worksheets and Quizzes for Quizzes and Answer Sheet __ 2. (Grades Earthquakes can also cause tsunamis, which are very large waves that can damage coastlines and put coastal residents in danger. from the epicenter will be 14 8. Success is figuring out that the estimated magnitude is 5.9. Great exercise for Regents Earth Science. 12), Analyze and interpret data about natural hazards using direct and indirect evidence 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) . Therefore, the lag Record your answer from Lab Exercise #2, Step 1. S wave: The second seismic wave of an earthquake. For this activity, select the "Chile" box. DocHub v5.1.1 Released! ' 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 miles from the epicenter of an Use mathematical representations of phenomena or design solutions to describe and/or support claims and/or explanations. Copyright USGS http://earthquake.usgs.gov/learn/kids/eqscience.php. However, please review it for the specific setting, materials, students, and conventional safety precautions.