activity 4 locating an earthquake epicenter answer key

between arrival of P and S waves is called Seismograms Mark the first arrival of the swave on each seismogram. Locating an Epicenter through Triangulation of Seismic Data- Remote/Hybrid/Live. P wave: The first seismic wave of an earthquake. Earthquakes and Volcanoes. Finding the Epicenter Determine the epicenter distance from three different seismographs. What data is used to determine magnitude? Earthquakes occur along faults, which are cracks in the Earths crust that build tension. S wave: The second seismic wave of an earthquake. All rights reserved. The spot where those three circles intersect is the epicenter (Figure 13.12). ?t?s=Yt '_( endstream endobj 76 0 obj <>stream The three seismograms in this activity are unfi ltered station records from a single event that occurred on August 1, 1999. The Earthquakes Living Lab gives students the chance to track earthquakes across the planet and examine where, why and how they are occurring. For example, the western United States has earthquakes more frequently and on a larger scale than the eastern part of the country. 0000005544 00000 n Answer the following questions in the spaces provided. The period of P waves is shorter, than the period of surface waves. THREE SEISMOGRAMS Seismogram A - New York, NY 1 minute 1. P and Swaves are body waves and travel, through the interior of the earth. BDF endstream endobj 74 0 obj <>stream 9 - It shows the time required for P 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. 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. HS]o01j6R0iMm4U=wL8]BE< 0000098546 00000 n long will it take, to the nearest 0. minutes, for the first P waves to travel from the epicenter to your station? 0000008088 00000 n Thanks for your feedback! Also commonly termed the focus. 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. 2. 61 0 obj <> endobj xref 0000055643 00000 n Make arrangements so that each student group has a computer with Internet access. 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. 0000002544 00000 n Send activity 4 locating an earthquake epicenter worksheet answers via email, link, or fax. Pwaves have the greatest velocity and reach the, seismic station first. The answer is the San Andreas Fault. The, amount of time that passes between the Pwave arrival and the Swave arrival is. %PDF-1.4 % Every year, earthquakes cause death and destruction worldwide. If your seismograph station is There are two sets of data and maps to do this activity/ lab for than once. In order to determine the location of an earthquake epicenter, seismographs from at least three different places are needed for a particular event. trailer <<320C1F98F8FF4795B5CCB8D9E9A0B99B>]/Prev 812054/XRefStm 1396>> startxref 0 %%EOF 93 0 obj <>stream Alignment agreement: Accessed December 11, 2013. http://en.wikipedia.org/wiki/Moment_magnitude_scale, Novak, Gary. 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. They make a model of a seismographa measuring device that records an earthquake on a seismogram. However, please review it for the specific setting, materials, students, and conventional safety precautions. Resources. Epicenter Location on Earth's surface directly above the focus of the earthquake 5. Focus (aka Hypocenter) is the location in the Earth where the earthquake starts. You will receive your score and answers at the end. Dochub is the best editor for changing your documents online. !D,X2:azTG)kPT~Mj 4>d w@O'. 5. focus - the point within Earth where an earthquake originates. Was there an initial quake followed by smaller quakes? Swaves arrive at the seismic station after the Pwaves. How is the magnitude of an earthquake determined? Do you agree with this alignment? 0000079769 00000 n Then from the same recordings they determine the earthquake's magnitude, an estimate of the amount of energy released during the earthquake. What did it feel like? %%EOF 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. Thus technology use varies from region to region and over time. Video Guide / Worksheets and Quizzes for Quizzes and Answer Sheet __ 2. It is slower than the same earthquake's P wave and cannot travel through liquids. =Cv :~4yrXP 62{_,*Uq/O-oUNBr-$y~:G},#3e^CS6U*_zVGY7ZNUWk2f?? {%!,"{u5E&OOqA_"/uxn-kx+Vz*EQb)Q Locating the Epicenter of an Earthquake - SE Asia a foldable activity, slide presentation to guide reading, and an answer key! Type text, add images, blackout confidential details, add comments, highlights and more. 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. To locate the epicenter of the earthquake, seismologists use the . 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. 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. Seismic Waves. gov For online instructions and current fees click here. The western U.S. has more faults than the eastern U.S., and therefore the western U.S. has more earthquakes. We have answers to the most popular questions from our customers. Travel-time graphDistance in Miles, Copyright 2023 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01, seismogram. Pwaves have the greatest velocity and reach theseismic station first. Describe the logarithmic nature of the earthquake magnitude scale. As the drum rotated, the 0000004060 00000 n A.45 seconds B.50 seconds C.55 seconds D.65 seconds Answer Key: D 0000031066 00000 n Use the process of triangulation to locate an earthquake's epicenter. 0000001978 00000 n Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org. After this activity, students should be able to: Each TeachEngineering lesson or activity is correlated to one or more K-12 science, 1. For this activity, select the "Chile" box. Students also investigate which structural designs are most likely to survive an earthquake. Analyze and interpret data on natural hazards to forecast future catastrophic events and inform the development of technologies to mitigate their effects. Make changes to the sample. In Figure 13.9, there is an example seismogram from a station that includes a minor earthquake. 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. Add to FlexBook Textbook. https://people.wou.edu/~taylors/gs104/lab5key.pdf Locating Earthquake Epicenters | CK-12 Foundation Apr 8, 2020 . Great-circle arcs are drawn on the globe using the distance of the earthquake to the station as a radius. (5 minutes) Discuss how gathering information on epicenters can be applied. 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 [*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 The epicenter is the point directly above it at the surface of the Earth. 0000005149 00000 n The USGS and its partners monitor and report earthquakes, assess earthquake impacts and hazards, 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. 0000002383 00000 n (Grades 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. 3000 miles. Many updates and improvements! 3. Geology Labs On-Line, Department of Geological Sciences, California State University, Los Angeles, CA. 0000003991 00000 n velocity, amplitude, and frequency of the How does distance from the epicenter affect the magnitude (height) of the seismograph reading? Lab Exercise #2: Locating the Epicenter of an Earthquake In this lab exercise, you will locate the epicenter of an earthquake. hbbd``b`$C`q9 X_$_g`bdxc`X 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. 4. fault - a fracture in Earth's crust where the rocks on either side have moved. Fill Locating The Epicenter Of An Earthquake Worksheet Answers, Edit online. m>r/Q[6 Facility Name Busine Child ren Information Child Name C. Child Social Security Number Type of Case being filed - Check only one category. Scientists and engineers around the globe gather data through observation and experimentation and use it to describe and understand how the world works. 0000030240 00000 n Epicenter is the location on the surface of the Earth directly above where the earthquake starts. (from left to right). Finding the Epicenter. P and S arrivals, you can now locate an earthquake your answers below. The hypocenter is the point within the earth where an earthquake rupture starts. Last modified July 18, 2012. 0000007097 00000 n While earthquake locations are normally done with a computer that can quickly determine the paths of seismic waves through the Earth to many seismic stations, 15 Introduction to Geology Chapter Worksheet . (Source: USGS, Wikipedia). 1. Earthquakes Living Lab: Finding Epicenters & Measuring Magnitudes. 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) . 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 One seismogram indicates the distance to the epicenter. by. 0000078169 00000 n At least 3 earthquake recording stations are required to find the location of the earthquake epicenter. 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. 2. Point on Earth's surface directly above an earthquake's focus. Of the four Earthquakes Living Lab seismic areas, choose the "Chile" box, as shown in Figure 3. 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. 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. Considered best for measuring small earthquakes (3.5 M or less). How do we determine the epicenter of an earthquake? located 1,000 miles from the Section A - Operator Information 1. For lower grades, just introduce the concepts of triangulation and the magnitude scale; a thorough understanding of P and S waves is not vital. Though the distance to the epicenter can be determined using a travel-time graph, the direction cannot be told. This worksheet focuses on using the p and s graph to find different variables. In this 1-to-10 logarithmic scale, each succeeding level representing 10 times as much energy as the last. The epicenter of an earthquake can be found using the difference between the arrival of the Primary and Secondary waves. Section 8.1 What Is an Earthquake? The uses of technologies and any limitations on their use are driven by individual or societal needs, desires, and values; by the findings of scientific research; and by differences in such factors as climate, natural resources, and economic conditions. epicenter: A point on the Earth's surface that is directly above the place where the underground forces of an earthquake originate. 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. If a quake is near the seismograph, the S-waves arrive shortly after the P-waves. What are those limits? This investigation is considered generally safe to do with students. Since the 1970s, the use of the Richter magnitude scale has largely been replaced in the scientific community by the moment magnitude scale (MMS). A circle with a radius of the distance to the quake can be drawn. To abbreviate, use the symbol M (a capital M, plain text, no sub/superscripts) expressed to the nearest 0.1. activity illustrates how the epicenter of an earthquake is found. Subjects: Run through the investigation yourself and record the data, just to see how long it takes. Epicenter. 0000004769 00000 n PDF. A seismograph is securely mounted onto the surface of the earth so that when the earth shakes, the entire unit shakes with it EXCEPT for the mass on the spring, which has inertia and remains in the same place. 0000001408 00000 n Subjects: Earth Sciences, General Science Grades: 5th - 8th Types: Activities, Laboratory When seismic data is collected from at least three different locations, it can be used to determine the epicenter by where it intersects. 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. 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. HS-PS4-1. to the lag time measured at this location? If you can't find an answer to your question, please contact us. Short for "primary wave" or "pressure wave." What was the lag time (in minutes) at this location? How can you locate an earthquake's epicenter? If a quake is far from the seismograph, the P-waves arrive long before the S-waves. Where the 3 circles intersect is the approximate location to the epicenter of the earthquake. 0000002250 00000 n Triangulation to Locate an Earthquake By Earthquake Hazards Original Thumbnail Medium Detailed Description Triangulation can be used to locate an earthquake. 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 magnitude is the logarithm of the amplitude of the ground wave. 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. Conclude the activity with a class discussion (and perhaps homework questions) to share ideas and answers, as described in the Assessment section. 83 0 obj <> endobj 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. The vertical lines, spaced one, minute apart, represent the passage of time, (from left to right). Wikipedia, The Free Encyclopedia. U.S. Geological Survey, U.S. Department of the Interior. 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 order to determine the location of an earthquake epicenter, seismographsfrom at least three different places are needed for a particular event. 0000002094 00000 n /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?? If the lag time were measured at a location closer to the epicenter, how would it compare earthquake. Practicing this technique, the students work several problems on a map of the US. (Grades PS: We do not share personal information or emails with anyone. 0000106240 00000 n 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. 0000005081 00000 n 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. Direct students to finish the activity by completing the. earthquakes. minutes = 6 minutes. 0000008845 00000 n 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. Learn more How Can I Locate the Earthquake Epicenter? The point where your ruler crosses the middle line on the chart marks the magnitude (strength) of the earthquake. Have students click on the Earthquakes Living Lab hyperlink in the top left in the earthquakes section. (, Have any of you ever experienced an earthquake or know anyone who has? minutes? Three seismographs are needed. Figure 2. 3. epicenter - the point on Earth's surface directly above the focus, or origin, of an earthquake. pen recorded the arrival of P, S, and surface Use of the TeachEngineering digital library and this website constitutes acceptance of our Terms of Use and Privacy Policy. within type by subtype, then by grade, etc. (Source: USGS). It takes S waves 14. 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 107 0 obj <>stream Three seismographs are needed. How does the lag time change as you get farther and The travel-time graph How does the period of the P waves compare to the period of the surface waves? 1) Identify the general term for waves released from an earthquake. Share with Classes. Review their answers to assess their base knowledge of the subject matter. X!.43p2t!}SLx-3z.KN4X+H\+vk? Apr 8, 2020 One seismogram indicates the distance to the epicenter. Last updated November 26, 2013. earthquake though). Mr Gneiss. You will analyze the records and locate the earthquake using a method known We additionally manage to pay for . ' 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 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. Please answer the following questions using the earthquake video - shake, shake, shake. 15 Bill Nye - Earthquakes Worksheet Key Earthquakes occur when the big pieces of earth's crust, called plates, move a little. 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Thanks for your feedback! What about P waves? 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. %PDF-1.3 % Notify the classroom teacher of technology needs (overhead projector). Figure 13.10). 0000002840 00000 n Upload a document. Do limits exist on what science can predict?