activity 4 locating an earthquake epicenter answer keyguess ethnicity by photo quiz

Earthquakes and Seismic Waves Key Concepts . 0000002383 00000 n After this activity, students should be able to: Each TeachEngineering lesson or activity is correlated to one or more K-12 science, Since the 1970s, the use of the Richter magnitude scale has largely been replaced in the scientific community by the moment magnitude scale (MMS). Copyright USGS http://earthquake.usgs.gov/learn/kids/eqscience.php. The magnitude is the logarithm of the amplitude of the ground wave. 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. Hands-on Activity Earthquakes Living Lab: Finding Epicenters minutes? Considered best for measuring small earthquakes (3.5 M or less). and S waves to travel any distance up to The vertical lines, spaced one, minute apart, represent the passage of time, (from left to right). approximate period of the surface waves in seconds? PDF Lecture 3 Activity: Locating an Earthquake Epicenter Geology Labs On-Line, Department of Geological Sciences, California State University, Los Angeles, CA. 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. 0000000856 00000 n 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. When seismic data is collected from at least three different locations, it can be used to determine the epicenter by where it intersects. %%EOF The period of a wave is the time between two adjacent wave peaks. 0000000016 00000 n Students learn about factors that engineers take into consideration when designing buildings for earthquake-prone regions. Short for "secondary wave" or "shear wave." 0000098546 00000 n Please answer the following questions using the earthquake video shake, shake, shake. Earthquakes Living Lab: Finding Epicenters & Measuring Magnitudes. Epicenter Location on Earth's surface directly above the focus of the earthquake 5. Thus technology use varies from region to region and over time. Locating An Earthquake Epicenter Worksheet Answers 6.17: Locating Earthquake Epicenters - K12 LibreTexts 0000002250 00000 n Earthquake Location 2 Using the skills that you acquired in the picking P and S arrivals, you can now locate an earthquake using real seismic records. HtA1D41`s(GME$Ke*YdEOYf2-:r. HTn0MmcHCB Have students click on the Earthquakes Living Lab hyperlink in the top left in the earthquakes section. 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. 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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. 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. Learn more How Can I Locate the Earthquake Epicenter? 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. ACTIVITY 4.2B Locating an Earthquake Figure 4.5 shows - Chegg 0000005149 00000 n The distance to the earthquake epicenter is then determined using the "Earthquake P-Wave and S-Wave Travel Time" graph. 0000004224 00000 n For example, Locating_an_epicenter_activity - Activity4 - Course Hero 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 PDF Finding Epicenters and Measuring Magnitudes Worksheet What was the lag time (in minutes) at this location? 17 Station St., Ste 3 Brookline, MA 02445. 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. 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. Some places are more prone to earthquakes than others. In order to determine the location of an earthquake epicenter, seismographsfrom at least three different places are needed for a particular event. "`B(R6sj [CX7p+s =#;~ `'kA Another method of locating an earthquake is to use the P-wave arrival-time minus origin-time (P - O) interval instead of distance. This is determined by the P-and S-wave arrival times. Millions of people witnessed the motion of the earthquake on television. 0000001978 00000 n What types of engineers might use this data the most? If you complete all the problems, you should be able to: Identify P, S, and surface waves on a simple seismogram. 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. This investigation is considered generally safe to do with students. During an earthquake, seismic waves are sent all over the globe. For example, the western United States has earthquakes more frequently and on a larger scale than the eastern part of the country. Yw8SxGk}X3kfTfW& gk`41#'uf7"G\fsN4^8jC7[+%`qFLFKpFc 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. What are those limits? locate and label the epicenter of the earthquake on this map. 0000003855 00000 n 13. Use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media. When an earthquake strikes, P waves arrive at a seismograph rst and S waves next. 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. To do this, have the students use, Find the epicenter of the earthquake on the map (. PS: We do not share personal information or emails with anyone. 0000008845 00000 n 0000002094 00000 n In the ASN, standards are hierarchically structured: first by source; e.g., by state; within source by type; e.g., science or mathematics; 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. Geologists use seismic waves to locate an earthquake's epicenter. 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. Hand out the worksheets to the groups and direct them to read through the instructions. 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. (Grades 6 - 8). located 1,000 miles from the by. 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. Apr 8, 2020 One seismogram indicates the distance to the epicenter. 0000079769 00000 n 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. Accessed December 11, 2013. http://www.sciencecourseware.com/virtualearthquake/, USGS Earthquake Magnitude Policy (implemented on January 18, 2002). 0000001533 00000 n Based on your answers to the previous question, what is the lag time for locations that are H\0y Lab Activity Locating Epicenters Teaching Resources | TPT They make a model of a seismographa measuring device that records an earthquake on a seismogram. The longer the time between the arrival of the P-wave and S-wave, the farther away is the epicenter. This opens a new window to Michigan Techs UPSeis informational site about earthquakes and seismology. A.45 seconds B.50 seconds C.55 seconds D.65 seconds Answer Key: D However, please review it for the specific setting, materials, students, and conventional safety precautions. 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. Section 8.1 What Is an Earthquake? 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. 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. hbbd``b`$C`q9 X_$_g`bdxc`X Use Figure 5 and the travel-time graph in Figure 4 to determine . atrial depolarization. It is slower than the same earthquake's P wave and cannot travel through liquids. 61 33 Ask students what fault they think caused this earthquake. Analyze and interpret data on natural hazards to forecast future catastrophic events and inform the development of technologies to mitigate their effects. Sixty-seven people lost their lives, and property damage was estimated at $6 billion. An earthquake is the violent movement of tectonic plates in the Earth's crust. Finding the epicenter of an Earthquake by Ah - Ha Lessons 5.0 (1) $3.00 PDF Activity This lesson teaches the student the process scientists use to locate the epicenter of an EQ. Great-circle arcs are drawn on the globe using the distance of the earthquake to the station as a radius. Locating An Earthquake Epicenter Lab Answer Key Accessed December 11, 2013. http://en.wikipedia.org/wiki/Moment_magnitude_scale, Novak, Gary. moment magnitude scale: Similar to the Richter scale, but replacing its use starting in the 1970s for more accuracy in measuring big earthquakes (magnitudes > 3.5) from greater distances. inch = 500 km. 0000009174 00000 n Solved Lab Exercise #2: Locating the Epicenter of an - Chegg 74 Earthquake Activity: Locating the Epicenter and Time of Earthquake . Locating an Epicenter Activity - Arkansas Geological Survey Then locate and click the link in the center of the page under the question: "How is an earthquake epicenter located and how is magnitude determined"? Collect any giveaways for the students, such as earthquake posters or plate tectonic fliers. [k0 |`2dGXGGGd00A(60P-e = F5n -f$ C 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. ya{I;W@DgMN2:UtbT=*+cY1.8Vm(u3Zt"J @9TAjJH@H_F3n7\Srdw~gAR#JQGj`ueS! (Figure 3):. (Grades 9 - 12). endstream endobj startxref Using this resource students find the arrival times of P-waves and S-waves using a seismogram. Seismographs - Keeping Track of Earthquakes | U.S. Geological Survey Locating Earthquake Epicenter Worksheet Answer Key A. Seismic waves-waves generated by an earthquake, can move the ground forward and back- answers the question. (Source: USGS, Wikipedia). 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. 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. Using historical seismographs, engineers forecast the strength or magnitude of earthquakes and make predictions and determine building codes and safety protocols. 0000004060 00000 n (Figure 3):. Success is figuring out that the estimated magnitude is 5.9. The hypocenter is the point within the earth where an earthquake rupture starts. gov For online instructions and current fees click here. The lag time for any Pwaves have the greatest velocity and reach the, seismic station first. Finding the Epicenter. graph. 0000001893 00000 n Review their answers to assess their base knowledge of the subject matter. Record your answer from Lab Exercise #2, Step 1. Direct students to finish the activity by completing the. 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 Subjects: Note the differences in 0000001143 00000 n Add to Library. $8.25. %PDF-1.3 % !D,X2:azTG)kPT~Mj 4>d w@O'. 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! 0000033429 00000 n How might they use this information? We additionally manage to pay for . HTAn 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. You will receive your score and answers at the end. Choose an answer and hit 'next'. Subjects: Earth Sciences, General Science Grades: 5th - 8th Types: Activities, Laboratory So the difference in the P- and S-wave arrival times determines the distance between the epicenter and a seismometer. a project of D2L (www.achievementstandards.org). Three seismographs are needed. Also commonly termed the focus. Figure 2. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. The spot where those three circles intersect is the epicenter (Figure 13.12). 0000003966 00000 n A single recording station can only calculate distance, but not direction; to cover all possibilities, a complete circle is drawn around that station. Use the process of triangulation to locate an earthquake's epicenter. 1. Then from the same recordings they determine the earthquake's magnitude, an estimate of the amount of energy released during the earthquake. The farther a station is from the 2. : 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. minute apart, represent the passage of time Figure 13.10). How does distance from the epicenter affect the magnitude (height) of the seismograph reading? 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. Focal Depth. https://people.wou.edu/~taylors/gs104/lab5key.pdf Locating Earthquake Epicenters | CK-12 Foundation Apr 8, 2020 . distance from transducer to the focal point. time for any point that is 3,000 miles The simulation renders three circles on a map and directs students to find the epicenter. 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. 9 - Draw your signature, type it, upload its image, or use your mobile device as a signature pad. 3. epicenter - the point on Earth's surface directly above the focus, or origin, of an earthquake. The farther away the epicenter is, the greater the difference . Cross), Give Me Liberty! Student exploration Graphing Skills SE Key Gizmos Explore Learning. As the drum rotated, the 15 Bill Nye - Earthquakes Worksheet Key Earthquakes occur when the big pieces of earth's crust, called plates, move a little. Have students turn in their answers for the Explain portion of the worksheet. pen recorded the arrival of P, S, and surface velocity, amplitude, and frequency of the Make arrangements so that each student group has a computer with Internet access. 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Activity 4 locating an earthquake epicenter answers: Fill out & sign 12), computer or other device with Internet access, journal or writing paper for each student. 0000001746 00000 n This section explains what earthquakes and faults are and what causes earthquakes. USGS Earthquake Hazards Program from the epicenter will be 14 8. Place a ruler (or straight edge) on the chart between the points you marked for the distance to the epicenter and the amplitude. 0000003991 00000 n Engineers first determine where earthquakes are likely to occur, and how severe they are likely to be. question 1 of 3. This is determined by the P-and S-wave arrival times. 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. consider a seismograph stationed 3, 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. 0 As you may know, people have look numerous times for . Once three seismographs have been located, find the time interval between the arrival of the P-wave and the arrival of the S-wave. Though the distance to the epicenter can be determined using a travel-time graph, the direction cannot be told. Finding the epicenter worksheet answer key. 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 Material is sheared side to side, perpendicular to the direction of wave propagation. Answer Key: Lab 5 Earthquakes - Find People EARTHQUAKES: Epicenter Determination and Seismic Waves . Tracings made at three separate seismic stations are needed to locate an earthquake epicenter. 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? How is the magnitude of an earthquake determined? seismograph: An instrument that measures motions of the ground, including those of seismic waves generated by earthquakes. The vertical lines, spaced one HTn0"H@w=s(vxk8OM1px-{$_!o5|CS7RPr#V(0CUa%ZkuT9t};D Jj=.9,z!#@n5YCu>R88tfFRX=iRK Do limits exist on what science can predict? 0000007097 00000 n One seismogram indicates the distance to the epicenter. Tips: Make sure students are reading the S waves and not the P waves. Y$Kr;V6[;Dq vg~cx:A[^jCssupwD endstream endobj 80 0 obj <> endobj 81 0 obj <>stream The travel-time graph Students learn what causes earthquakes, how we measure and locate them, and their effects and consequences. Explains how to find an earthquake epicenter using at least three seismograph stations. Why might the triangulation method not always produce an exact point (other than your measurement errors)? 107 0 obj <>stream As you read and complete the activity, take notes so you can complete the. Earthquake Worksheet 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. 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. Conclude the activity with a class discussion (and perhaps homework questions) to share ideas and answers, as described in the Assessment section. 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? 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. 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. Do you agree with this alignment? 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. Nov 2, 2020 Triangulation is used to determine the location of an earthquake. P and S arrivals, you can now locate an earthquake your answers below. hb```f``Rl@ (l"`+uk?0.a~@6Vm;| G3f`75@v@Wz|A4#w9{(` ) The USGS now uses the MMS to estimate magnitudes for all modern large earthquakes.

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