activity 4 locating an earthquake epicenter answer key

0000001396 00000 n As discussed earlier in this lesson, this method of determining the epicenter of an . Locating An Earthquake Epicenter Lab Answer Key Triangulation to Locate an Earthquake | U.S. Geological Survey Edit your locating an earthquake epicenter worksheet answers online. Triangulation to Locate an Earthquake By Earthquake Hazards Original Thumbnail Medium Detailed Description Triangulation can be used to locate an earthquake. All rights reserved. Finding the Epicenter Determine the epicenter distance from three different seismographs. Graphs, charts, and images can be used to identify patterns in data. The calculated distance from each seismometer to the earthquake is shown as a circle. Triangulation and Magnitude: Student pairs complete the worksheet, which includes following a tutorial/simulation accessed through the Earthquakes Living Lab. This is determined by the P-and S-wave arrival times. 0000001408 00000 n Hand out the worksheets to the groups and direct them to read through the instructions. Tracings made at three separate seismic stations are needed to locate an earthquake epicenter. An earthquake is what happens when two blocks of the earth suddenly slip past one directly above it on the surface of the earth is called the epicenter. 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. PDF EARTHQUAKES: Epicenter Determination, Seismic Waves, and Hazards - WOU Ch Person/Attorney Filing: - Superior Court - Maricopa County - superiorcourt maricopa. 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 In this investigation, participants will understand that S and P waves are used to find the epicenter of an earthquake by using seismograph data to triangulate an epicenter. Lab Activity Locating Epicenters Flashcards | Quizlet EARTHQUAKES: Epicenter Determination and Seismic Waves First locate and mark the three seismic stations on the world map provided below. : 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. 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. hb```b````e``n`d@ A 'EF''oquE"ky#:}m;9JmkPt~=unFHy&|X:70 vILZ*|%6mD! The spot where those three circles intersect is the epicenter (Figure 13.12). 0000001533 00000 n 1. 0000004224 00000 n It's a logarithmic scale from 1 to 10 with each succeeding level representing 10 times as much energy as the last. In Figure 13.9, there is an example seismogram from a station that includes a minor earthquake. Direct students to finish the activity by completing the. 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. For example, the western United States has earthquakes more frequently and on a larger scale than the eastern part of the country. S-P interval: The time interval between the arrivals of P and S waves. The magnitude is the logarithm of the amplitude of the ground wave. The Richter scale was created in the 1930s to assign a single number to quantify the energy released during earthquakes. (Listen to student ideas.) Activity4:LocatinganEarthquakeEpicenter Objectives:Ifyoucompletealltheproblems,youshouldbeableto: Identif The distance is in kilometers. Run through the investigation yourself and record the data, just to see how long it takes. Make arrangements so that each student group has a computer with Internet access. A circle with a radius of the distance to the quake can be drawn. Success is figuring out that the estimated magnitude is 5.9. Describe the logarithmic nature of the earthquake magnitude scale. 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. 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. 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. graph. directly above it on the surface of the earth is called the epicenter. 87 0 obj <> endobj xref 87 28 0000000016 00000 n 0000004060 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. 0000001736 00000 n All the arcs should intersect at a common point - the epicenter. After reading about earthquakes, open a new window to an Earthquake Simulator at, Follow the simulation instructions. Copyright 2023. This activity is designed around the Earthquakes Living Lab, a resource and online interface that uses real-time U.S. Geological Survey seismic data from around the world. 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. approximate period of the surface waves in seconds? Practice with Triangulation: Locating an earthquake epicenter. Earthquakes occur along faults, which are cracks in the Earths crust that build tension. 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?" 4. Thus technology use varies from region to region and over time. At least 3 earthquake recording stations are required to find the location of the earthquake epicenter. HTAn hbbd``b`$C`q9 X_$_g`bdxc`X Apr 8, 2020 One seismogram indicates the distance to the epicenter. Make an overhead copy of each of the handouts. Wikipedia, The Free Encyclopedia. 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. Resources. Last modified July 18, 2012. The three seismograms in this activity are unfi ltered station records from a single event that occurred on August 1, 1999. How far do S waves travel in 5 seismogram. 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. If the lag time were measured at a location closer to the epicenter, how would it compare Type text, add images, blackout confidential details, add comments, highlights and more. $8.25. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. activity illustrates how the epicenter of an earthquake is found. A. Seismic waves-waves generated by an earthquake, can move the ground forward and back- answers the question. PDF Page - 1 Lab 08 - Seismology - Locating the Epicenter of an Earthquake This is determined by the P-and S-wave arrival times. Using 3 seismograms the students will be able to triangulate the epicenter of an earthquake. Must engineers be content with mitigating disasters, instead of preventing them? Success is figuring out that the epicenter is just off the coast of Chile, where the three circles intersect. By looking at the time between the arrivals of the P- and S-waves, one can determine the distance to the earthquake from that station, with longer time intervals indicating longer distance. To locate the epicenter of the earthquake, seismologists use the . Assess their understanding based on the thoroughness of their answers. xb``d``Id`a`Ab@_ :iWGi>|q` Activity 4: Locating an Earthquake Epicenter, The three basic types of seismic wave generated by an earthquake at its focus are P, waves, Swaves, and Surface waves. HTn0"H@w=s(vxk8OM1px-{$_!o5|CS7RPr#V(0CUa%ZkuT9t};D Jj=.9,z!#@n5YCu>R88tfFRX=iRK Solved Lab Exercise #2: Locating the Epicenter of an - Chegg What was the lag time (in minutes) at this location? 0000003991 00000 n Students learn what causes earthquakes, how we measure and locate them, and their effects and consequences. 0000033429 00000 n Locating the Epicenter of an Earthquake - SE Asia a foldable activity, slide presentation to guide reading, and an answer key! Lab Exercise #2: Locating the Epicenter of an Earthquake In this lab exercise, you will locate the epicenter of an earthquake. A single recording station can only calculate distance, but not direction; to cover all possibilities, a complete circle is drawn around that station. What data is used to determine magnitude? Triangulation is required to determine exactly where it happened. /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?? Moment magnitude scale. The simulation renders three circles on a map and directs students to find the epicenter. Use this information to complete the following. Refer to the data table and use the difference in arrival times to determine the distance to the earthquake epicenter for Station 2. 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. How can you locate an earthquake's epicenter? In order to determine the location of an earthquake epicenter, seismographs from at least three different places are needed for a particular event. Download. You will receive your score and answers at the end. atrial depolarization. The USGS now uses the MMS to estimate magnitudes for all modern large earthquakes. Thanks for your feedback! 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 The Earthquakes Living Lab gives students the chance to track earthquakes across the planet and examine where, why and how they are occurring. Develop a solution to a technological problem that has the least negative environmental and social impact. Alignment agreement: As the drum rotated, the 0000007783 00000 n The hypocenter is the point within the earth where an earthquake rupture starts. Earthquakes can also cause tsunamis, which are very large waves that can damage coastlines and put coastal residents in danger. This opens a new window to Michigan Techs UPSeis informational site about earthquakes and seismology. 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Facility Name Busine Child ren Information Child Name C. Child Social Security Number Type of Case being filed - Check only one category. 0000004769 00000 n 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. ya{I;W@DgMN2:UtbT=*+cY1.8Vm(u3Zt"J @9TAjJH@H_F3n7\Srdw~gAR#JQGj`ueS! Thanks for your feedback! Many updates and improvements! 0000055643 00000 n different types of seismic waves. 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. 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. Describe the process of triangulation to locate an epicenter. m>r/Q[6 ?t?s=Yt '_( endstream endobj 76 0 obj <>stream 61 33 This section explains what earthquakes and faults are and what causes earthquakes. The epicenter of an earthquake can be found using the difference between the arrival of the Primary and Secondary waves. 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. *The NGSS logo is a registered trademark of WestEd. 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. 0000009174 00000 n Locating Earthquake Epicenter Worksheet Answer Key Copyright USGS http://earthquake.usgs.gov/learn/kids/eqscience.php. Click for facts and worksheets in PDF! First locate and mark the three seismic stations on the world map provided below. P and S arrivals, you can now locate an earthquake your answers below. Next, have student groups answer the eight questions in the. Objective Use data from seismograms to locate the epicenters of earthquakes. Subjects: Earth Sciences, General Science Grades: 5th - 8th Types: Activities, Laboratory 0000001604 00000 n Thanks for your feedback! What did it feel like? The vertical lines, spaced one PS: We do not share personal information or emails with anyone. 9 - Upload a document. 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. A.45 seconds B.50 seconds C.55 seconds D.65 seconds Answer Key: D 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. epicenter: A point on the Earth's surface that is directly above the place where the underground forces of an earthquake originate. 9 - 0000008088 00000 n How are S and P waves used to determine how far away epicenters are? 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. longer or shorter). Continue the discussion with the following questions (or assign these questions as homework): Have student groups explore one or more of the other two regions (Southern California and Japan) provided in the Virtual Earthquake simulation. 0000030968 00000 n Reading Strategy. Then do the same for the S-wave. Short for "secondary wave" or "shear wave." What about P waves? 0000001862 00000 n 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) . Swaves arrive at the seismic station after the Pwaves. epicenter, the longer the lag time measured Multiply the difference by 8.4 to estimate the distance, in kilometers, from the seismograph station to the epicenter. Mr Gneiss. What is the 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. 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 The point beneath Earth's surface where rock breaks under stress and causes an earthquake. (, 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. 12), Evaluate ways that technology can impact individuals, society, and the environment. (5 minutes) Discuss how gathering information on epicenters can be applied. 0000002250 00000 n miles from the epicenter of an 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? 0000004511 00000 n 1. Have students click on the Earthquakes Living Lab hyperlink in the top left in the earthquakes section. 74 Earthquake Activity: Locating the Epicenter and Time of Earthquake . HS-PS4-1. The real-world earthquake data is viewable via a graphical interface using a scaling map. 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. Seismographs - Keeping Track of Earthquakes | U.S. Geological Survey Travel-time graphDistance in Miles, Copyright 2023 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01, seismogram. Accessed December 11, 2013. http://www.sciencecourseware.com/virtualearthquake/, USGS Earthquake Magnitude Policy (implemented on January 18, 2002). H\0y Do you agree with this alignment? lag time. For example, 0000001562 00000 n 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. (Grades Shear wave from earthquake, moving slower than primary waves, through solid material only. The longer the time is between the P-and S-wave . One seismogram indicates the distance to the epicenter. trailer <<0444DE89825047A1A483C62E98F50868>]>> startxref 0 %%EOF 114 0 obj <>stream Three seismographs are needed. Three seismographs are needed. Activity 4 locating an earthquake epicenter answers: Fill out & sign Show students some of the numerous online animations comparing the movements of P and S waves. 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. Of the four Earthquakes Living Lab seismic areas, choose the "Chile" box, as shown in Figure 3. farther from the epicenter of an earthquake? The farther away the epicenter is, the greater the difference . PDF Locating an Epicenter Activity - Arkansas Geological Survey Explain the difference between S and P waves, and how their time interval is used to determine the epicenter location. In a concluding class discussion, have groups share their ideas about engineering and one new thing they learned about earthquakes. All 100,000+ K-12 STEM standards covered in TeachEngineering are collected, maintained and packaged by the Achievement Standards Network (ASN), Do you agree with this alignment? 0000001978 00000 n minute apart, represent the passage of time consider a seismograph stationed 3, 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. Earthquakes and Volcanoes. 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."

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