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. Locating Earthquake Epicenter Teaching Resources | TPT 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. Use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media. earthquake. travel time for P waves. 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. travel 3,000 miles. Click for facts and worksheets in PDF! 107 0 obj <>stream Epicenter Location on Earth's surface directly above the focus of the earthquake 5. Video Guide / Worksheets and Quizzes for Quizzes and Answer Sheet __ 2. Three seismographs are needed. 0000007097 00000 n Make an overhead copy of each of the handouts. (Listen to student ideas.) Please answer the following questions using the earthquake video shake, shake, shake. There are two sets of data and maps to do this activity/ lab for than once. %PDF-1.3 % How does the period of the P waves compare to the period of the surface waves? Add to FlexBook Textbook. Locating an Epicenter through Triangulation of Seismic Data- Remote/Hybrid/Live. 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. Every earthquake is recorded on numerous seismographs located in different directions. Therefore, the lag 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. For example, the western United States has earthquakes more frequently and on a larger scale than the eastern part of the country. Note the differences in A single recording station can only calculate distance, but not direction; to cover all possibilities, a complete circle is drawn around that station. These natural disasters may be mitigated, however, by insightful and creative engineering. Pwaves have the greatest velocity and reach theseismic station first. THREE SEISMOGRAMS Seismogram A - New York, NY 1 minute 1. 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Earthquakes can also cause tsunamis, which are very large waves that can damage coastlines and put coastal residents in danger. 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. 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. In this 1-to-10 logarithmic scale, each succeeding level representing 10 times as much energy as the last. Encourage them to explore all of the Earthquakes Living Lab as they complete the worksheet. 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. 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. 0000002658 00000 n Activity4:LocatinganEarthquakeEpicenter Objectives:Ifyoucompletealltheproblems,youshouldbeableto: Identif Using this resource students find the arrival times of P-waves and S-waves using a seismogram. You learned that seismologists determine the distance to the earthquake epicenter using the difference between S and P wave arrival times. 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. 0000002507 00000 n Earthquakes and Seismic Waves Key Concepts . The epicenter is the point directly above it at the surface of the Earth. velocity, amplitude, and frequency of the Pwaves have the greatest velocity and reach the, seismic station first. The, amount of time that passes between the Pwave arrival and the Swave arrival is. 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. 5 4. It shows the time required for P Travel-time graphDistance in Miles, Copyright 2023 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01, seismogram. 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 endstream endobj 84 0 obj <> endobj 85 0 obj <> endobj 86 0 obj <>stream earthquake though). earthquakes. and S waves depends on the distance from the epicenter of the answer the following question. Seismographs - Keeping Track of Earthquakes | U.S. Geological Survey How many minutes elapsed between the arrival of the first P wave and the last measurable 0000003991 00000 n 0000010002 00000 n 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 However, please review it for the specific setting, materials, students, and conventional safety precautions. The seismometers are shown as green dots. A minimum of three seismic stations is necessary to locate an epicenter. Expert Answer. Earthquakes and Volcanoes. 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. (Grades 6 - 8). How is the magnitude of an earthquake determined? Finding the Epicenter Determine the epicenter distance from three different seismographs. Scientists and engineers around the globe gather data through observation and experimentation and use it to describe and understand how the world works. Students also investigate which structural designs are most likely to survive an earthquake. To accurately locate an earthquake epicenter, records from three. inch = 500 km. Locating Earthquake Epicenter Lab - Triangulation sheet for students and/or teachers to use (Slide 6), and answer key (Slide 7). Sign, fax and printable from PC, iPad, tablet or mobile with pdfFiller Note-taking Worksheet. 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. "`B(R6sj [CX7p+s =#;~ `'kA PDF Example Answers - TeachEngineering ACTIVITY 4.2B Locating an Earthquake Figure 4.5 shows - Chegg 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. 0000001777 00000 n Once three seismographs have been located, find the time interval between the arrival of the P-wave . EARTHQUAKES: Epicenter Determination and Seismic Waves First locate and mark the three seismic stations on the world map provided below. 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 longer the time is between the P-and S-wave . Ch Person/Attorney Filing: - Superior Court - Maricopa County - superiorcourt maricopa. 0000007783 00000 n Do you agree with this alignment? In Figure 13.9, there is an example seismogram from a station that includes a minor earthquake. HTn0MmcHCB The USGS now uses the MMS to estimate magnitudes for all modern large earthquakes. This is determined by the P-and S-wave arrival times. 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. 0000001604 00000 n Upload a document. 12), Analyze and interpret data about natural hazards using direct and indirect evidence PDF. Resources. epicenter: A point on the Earth's surface that is directly above the place where the underground forces of an earthquake originate. I also will take them through the general process of how find the difference in arrival times of p- and s-waves can be used to find a distance to an earthquake and how using data from 3 seismograph stations is used to locate the epicenter. Thanks for your feedback! 12), computer or other device with Internet access, journal or writing paper for each student. surface wave? 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 spot where those three circles intersect is the epicenter (Figure 13.12). Draw your signature, type it, upload its image, or use your mobile device as a signature pad. Graphs, charts, and images can be used to identify patterns in data. PDF Lecture 3 Activity: Locating an Earthquake Epicenter minutes? (, 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. 0000078100 00000 n Locating An Earthquake Epicenter Lab Answer Key Seismograms 83 0 obj <> endobj The Earthquakes Living Lab gives students the chance to track earthquakes across the planet and examine where, why and how they are occurring. Thanks for your feedback! hb```f``Rl@ (l"`+uk?0.a~@6Vm;| G3f`75@v@Wz|A4#w9{(` ) [*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 0000001408 00000 n Take a few minutes to read the information on the left side of this page for the 2010 earthquake off the coast of central Chile. different types of seismic waves. 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." %PDF-1.4 % Multiply the difference by 8.4 to estimate the distance, in kilometers, from the seismograph station to the epicenter. In a concluding class discussion, have groups share their ideas about engineering and one new thing they learned about earthquakes. The vertical lines, spaced one, minute apart, represent the passage of time, (from left to right). important in helping seismologists determine the epicenter of the earthquake. Though the distance to the epicenter can be determined using a travel-time graph, the direction cannot be told. Answers to the Finding the Epicenter Gizmos Lab - Name: Earthquakes 2 directly above it on the surface of the earth is called the epicenter. 61 0 obj <> endobj xref Focal Depth. 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. Quick Tips. (Grades between arrival of P and S waves is called An earthquake is the violent movement of tectonic plates in the Earth's crust. pen recorded the arrival of P, S, and surface USGS Earthquake Hazards Program 6. Reading Strategy. Analyze and interpret data on natural hazards to forecast future catastrophic events and inform the development of technologies to mitigate their effects. Virtual Earthquake (tutorial/simulation) 1996. PDF EARTHQUAKE EPICENTER LOCATION EXERCISE - Idaho geology Hands-on Activity Earthquakes Living Lab: Finding Epicenters epicenter, the longer the lag time measured Conclude the activity with a class discussion (and perhaps homework questions) to share ideas and answers, as described in the Assessment section. How far do S waves travel in 5 Thanks for your feedback! HS]o01j6R0iMm4U=wL8]BE< Great-circle arcs are drawn on the globe using the distance of the earthquake to the station as a radius. 1. It travels faster than the same earthquake's S wave (almost double the speed) and is similar to sound waves. You will receive your score and answers at the end. 74 Earthquake Activity: Locating the Epicenter and Time of Earthquake . 9 - A.45 seconds B.50 seconds C.55 seconds D.65 seconds Answer Key: D 12), Seek, evaluate, and use a variety of specialized resources available from libraries, the Internet, and the community to find scientific information on Earth's history 92 0 obj <>/Filter/FlateDecode/ID[]/Index[83 25]/Info 82 0 R/Length 62/Prev 466624/Root 84 0 R/Size 108/Type/XRef/W[1 2 1]>>stream Millions of people witnessed the motion of the earthquake on television. The western U.S. has more faults than the eastern U.S., and therefore the western U.S. has more earthquakes. Find 23 millimeters on the right side of the chart and mark that point. How does distance from the epicenter affect the S-P time interval? PS: We do not share personal information or emails with anyone. The hypocenter is the point within the earth where an earthquake rupture starts. P wave: The first seismic wave of an earthquake. PDF Finding Epicenters and Measuring Magnitudes Worksheet 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 determine the epicenter using the S P (S minus P) method. The USGS and its partners monitor and report earthquakes, assess earthquake impacts and hazards, and . They make a model of a seismographa measuring device that records an earthquake on a seismogram. First locate and mark the three seismic stations on the world map provided below. When seismic data is collected from at least three different locations, it can be used to determine the epicenter by where it intersects. Learn more How Can I Locate the Earthquake Epicenter? Point on Earth's surface directly above an earthquake's focus. 3000 miles. Triangulation and Magnitude: Student pairs complete the worksheet, which includes following a tutorial/simulation accessed through the Earthquakes Living Lab. Notify the classroom teacher of technology needs (overhead projector). After reading about earthquakes, open a new window to an Earthquake Simulator at, Follow the simulation instructions. If you can't find an answer to your question, please contact us. The longer the time between the arrival of the P-wave and S-wave, the farther away is the epicenter. 12 Earthquake Location Lab Answer Key Full PDF - www.yvc.moeys.gov xb``d``Id`a`Ab@_ :iWGi>|q` The distance is in kilometers. 2. Focus. How can you locate an earthquake's epicenter? Figure 2 is a seismic wave travel-time To abbreviate, use the symbol M (a capital M, plain text, no sub/superscripts) expressed to the nearest 0.1. What is the Locating_an_epicenter_activity-MB.pdf - Activity 4: Locating an lag time. 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. 0000001562 00000 n Short for "secondary wave" or "shear wave." Next, have student groups answer the eight questions in the. All 100,000+ K-12 STEM standards covered in TeachEngineering are collected, maintained and packaged by the Achievement Standards Network (ASN), aqmd. Earthquake Worksheet Answers 0000004060 00000 n PDF EARTHQUAKES: Epicenter Determination, Seismic Waves, and Hazards - WOU It is slower than the same earthquake's P wave and cannot travel through liquids. 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. The real-world earthquake data is viewable via a graphical interface using a scaling map. 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. American Geosciences Institute. S wave: The second seismic wave of an earthquake. Dochub is the best editor for changing your documents online. 0000000856 00000 n These distances are determined using a travel-time curve, which is a graph of Pand S-wave arrival times (see Figure 13.11). 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. 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 Locating Epicenter Lab Worksheet (1).docx, Updating Patient Registration B at 08_10_2022 03_03 PM.pdf, You need to deploy an Azure environment that meets the company migration plan, Step 1 of 2 Program 1 A Simple Python Program Welcome with Two Messages Running, More women in academia report polarization assimilation in male skewed and male, A TACACS B RADIUS C Kerberos D SAML Correct Answer D QUESTION 321 A network, PTSD in Children and Adolescents - Copy - Copy - Copy - Copy.docx, Effects of Excitation and Prime Mover Control The excitation control helps to, D1 Fundamental security design principles.docx, Question 5 Correct Mark 100 out of 100 Remove flag Question 6 Correct Mark 100, Thomas Concurrence broadly attacked current NDD Federal gov should be allowed to, 769 Water at 15C is to be heated to 65C by passing it over a bundle of 4 m. Course Hero is not sponsored or endorsed by any college or university. HTAn Practice with Triangulation: Locating an earthquake epicenter. All rights reserved. Engineers first determine where earthquakes are likely to occur, and how severe they are likely to be. 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 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. Locating the Epicenter of an Earthquake - SE Asia a foldable activity, slide presentation to guide reading, and an answer key! You can also download it, export it or print it out. To do this, have the students use, Find the epicenter of the earthquake on the map (. Then do the same for the S-wave. The lag time for any distance from transducer to the focal point. Students learn what causes earthquakes, how we measure and locate them, and their effects and consequences. Zip. Finding the Epicenter. Several thousand seismographs exist at locations around the planet, continuously measuring abnormalities in the Earth's movement. Even though the scale formulae are different, MMS retains the familiar continuum of magnitude values defined by the older scale. (Grades Have students click on the Earthquakes Living Lab hyperlink in the top left in the earthquakes section.