Looking at the nomogram, students click on each location data point to see where the three lines intersect to read the estimated magnitude. For example, the western United States has earthquakes more frequently and on a larger scale than the eastern part of the country. *The NGSS logo is a registered trademark of WestEd. 0000001396 00000 n
This opens a new window to Michigan Techs UPSeis informational site about earthquakes and seismology.
Locating Earthquake Epicenters ( Read ) | Earth Science Apr 8, 2020 One seismogram indicates the distance to the epicenter.
A single recording station can only calculate distance, but not direction; to cover all possibilities, a complete circle is drawn around that station. Using this resource students find the arrival times of P-waves and S-waves using a seismogram.
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different types of seismic waves. Practice with Triangulation: Locating an earthquake epicenter. During an earthquake, seismic waves are sent all over the globe.
(Figure 3):. Share with Classes. time for any point that is 3,000 miles What types of engineers might use this data the most? Accessed December 11, 2013. http://www.sciencecourseware.com/virtualearthquake/, USGS Earthquake Magnitude Policy (implemented on January 18, 2002). Lab Exercise #2: Locating the Epicenter of an Earthquake In this lab exercise, you will locate the epicenter of an earthquake. Then do the same for the S-wave. The vertical lines, spaced one locate and label the epicenter of the earthquake on this map. Was there an initial quake followed by smaller quakes? HS-PS4-1. travel time for P waves. 0000002544 00000 n
Send activity 4 locating an earthquake epicenter worksheet answers via email, link, or fax.
If a quake is near the seismograph, the S-waves arrive shortly after the P-waves. These natural disasters may be mitigated, however, by insightful and creative engineering. Earthquakes occur along faults, which are cracks in the Earths crust that build tension.
Empirical evidence is required to differentiate between cause and correlation and make claims about specific causes and effects. P and Swaves are body waves and travelthrough the interior of the earth. (Grades
Use of the TeachEngineering digital library and this website constitutes acceptance of our Terms of Use and Privacy Policy. (Source: USGS, Wikipedia). 0000103591 00000 n
12), computer or other device with Internet access, journal or writing paper for each student.
Solved Lab Exercise #2: Locating the Epicenter of an - Chegg Make changes to the sample. ?t?s=Yt '_(
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Hands-on Activity Earthquakes Living Lab: Finding Epicenters Sign, fax and printable from PC, iPad, tablet or mobile with pdfFiller Note-taking Worksheet. (Listen to student ideas.) 11 minutes elapsed between the first P wave and the last measurable surface wave. ya{I;W@DgMN2:UtbT=*+cY1.8Vm(u3Zt"J
@9TAjJH@H_F3n7\Srdw~gAR#JQGj`ueS! As you read and complete the activity, take notes so you can complete the. (5 minutes) Discuss how gathering information on epicenters can be applied. So the difference in the P- and S-wave arrival times determines the distance between the epicenter and a seismometer. Choose an answer and hit 'next'. atrial depolarization. Considered best for measuring small earthquakes (3.5 M or less). The simulation renders three circles on a map and directs students to find the epicenter. 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
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Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org. 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. to the lag time measured at this location? What is an earthquake? The answer is the San Andreas Fault. Millions of people witnessed the motion of the earthquake on television. 0000002507 00000 n
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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. Thus technology use varies from region to region and over time. Seismographs - Keeping Track of Earthquakes | U.S. Geological Survey Zip. Analyze and interpret data on natural hazards to forecast future catastrophic events and inform the development of technologies to mitigate their effects. One seismogram indicates the distance to the epicenter. Seismic stations detect earthquakes by the tracings made on seismographs. 5. focus - the point within Earth where an earthquake originates. In Figure 13.9, there is an example seismogram from a station that includes a minor earthquake. Subjects: Earth Sciences, General Science Grades: 5th - 8th Types: Activities, Laboratory Epicenter. consider a seismograph stationed 3, Accessed December 11, 2013. http://en.wikipedia.org/wiki/Moment_magnitude_scale, Novak, Gary. Do you agree with this alignment? 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." Focus (aka Hypocenter) is the location in the Earth where the earthquake starts. PDF Locating An Earthquake Epicenter Lab Answers - Full PDF 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. 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. Activity 4 locating an earthquake epicenter answers: Fill out & sign !D,X2:azTG)kPT~Mj 4>d w@O'. Sharing Information/Thinking Ahead: In the Evaluate section of the worksheet, student pairs are asked to compose answers to two questionswhether they think seismology is a reliable science and ways seismic data is useful for engineers. Through the online Earthquakes Living Lab, student pairs explore various types of seismic waves and the differences between shear waves and compressional waves. S waves. 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. As discussed earlier in this lesson, this method of determining the epicenter of an . directly above it on the surface of the earth is called the epicenter. 0000003966 00000 n
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Lab Activity Locating Epicenters Teaching Resources | TPT Students first triangulate the location of an earthquake's epicenter, then calculate its magnitude. Resources. The epicenter is the point directly above it at the surface of the Earth. HtA1D41`s(GME$Ke*YdEOYf2-:r. Students also investigate which structural designs are most likely to survive an earthquake. hbb2b`b``a I @
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Answer Key: Lab 5 Earthquakes - Find People, Locating Earthquake Epicenters | CK-12 Foundation, Earthquake Station - Regents Earth Science, Locating Earthquakes Teaching Resources - TPT, Locating An Epicenter Teaching Resources - TPT, How To Find The Epicenter Of An Earthquake - YouTube, Locating The Epicenter Of An Earthquake Worksheet, Locating An Earthquake Epicenter Worksheet Answers, glencoe responsible driving chapter 2 answers, pnp neuro psychiatric exam sample questions, quais tipos de drogas sao detectadas no exame toxicologico, centro de apoio diagnostico resultado de exames, locating earthquake epicenter worksheet answer key, exame pcr covid para viagem internacional, quantos dias pra sair o resultado do exame de covid, du ma political science entrance exam syllabus 2023, earth and life science grade 11 module 4 genetic engineering answer key, go math grade 5 chapter 11 lesson 11.9 answer key, civil service examination in the philippines. 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. What data is used to determine magnitude? Type text, add images, blackout confidential details, add comments, highlights and more. 0000005149 00000 n
It is slower than the same earthquake's P wave and cannot travel through liquids. Sixty-seven people lost their lives, and property damage was estimated at $6 billion. question 1 of 3. Travel-time graphDistance in Miles, Copyright 2023 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01, 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. 0000005544 00000 n
It is called triangulation because a triangle has three sides, and it takes three seismographs to locate an earthquake. (Grades 6 - 8). Epicenter is the location on the surface of the Earth directly above where the earthquake starts. Draw your signature, type it, upload its image, or use your mobile device as a signature pad. How does the Mad Scientist. The longer the time between the arrival of the P-wave and S-wave, the farther away is the epicenter. minute apart, represent the passage of time 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. 6.17: Locating Earthquake Epicenters - K12 LibreTexts (, 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. Of the four Earthquakes Living Lab seismic areas, choose the "Chile" box, as shown in Figure 3. Where the 3 circles intersect is the approximate location to the epicenter of the earthquake. seismograph: An instrument that measures motions of the ground, including those of seismic waves generated by earthquakes.