P wave: The first seismic wave of an earthquake. Video Guide / Worksheets and Quizzes for Quizzes and Answer Sheet __ 2. Describe the process of triangulation to locate an epicenter. It is called triangulation because a triangle has three sides, and it takes three seismographs to locate an earthquake. View Notes - Locating_an_epicenter_activity from SCIENCE Earth Scie at Toms River High North. How are S and P waves used to determine how far away epicenters are? %PDF-1.3 % aqmd. 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. 0000009174 00000 n 13 4 locating an earthquake epicenter geosciences libretexts . Geology Labs On-Line, Department of Geological Sciences, California State University, Los Angeles, CA. 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. Explains how to find an earthquake epicenter using at least three seismograph stations. Add to FlexBook Textbook. 0000006011 00000 n 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"? minute apart, represent the passage of time An earthquake is the violent movement of tectonic plates in the Earth's crust. The answer is the San Andreas Fault. question 1 of 3. A minimum of three seismic stations is necessary to locate an epicenter. E}g7$i(=K)"aj%v]vPcYloi@X3noGX{[XucOgkdF.>Ym^fwrQf;8_Nok3w\;?n_Hhc?>k\o[%DgwJ'3d.lTqDy_aJw! 0000004224 00000 n A. Seismic waves-waves generated by an earthquake, can move the ground forward and back- answers the question. What data is used to determine magnitude? Do you agree with this alignment? We have answers to the most popular questions from our customers. Shear wave from earthquake, moving slower than primary waves, through solid material only. /g$=#!$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?? Pwaves have the greatest velocity and reach theseismic station first. Use mathematical representations of phenomena or design solutions to describe and/or support claims and/or explanations. When the tension becomes too great, the fault slips, causing an earthquake. ya{I;W@DgMN2:UtbT=*+cY1.8Vm(u3Zt"J @9TAjJH@H_F3n7\Srdw~gAR#JQGj`ueS! 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. 0000098546 00000 n As you may know, people have look numerous times for . 0000008088 00000 n seismograph: An instrument that measures motions of the ground, including those of seismic waves generated by earthquakes. Lab Exercise #2: Locating the Epicenter of an Earthquake In this lab exercise, you will locate the epicenter of an earthquake. to the lag time measured at this location? 0000001861 00000 n What is the 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. Accessed December 11, 2013. http://earthquake.usgs.gov/aboutus/docs/020204mag_policy.php. A little under 30 seconds, maybe around 26 seconds. Do you think we will someday be able to prevent earthquakes? The, amount of time that passes between the Pwave arrival and the Swave arrival is. 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. 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? MS-ESS3-2. Have students turn in their answers for the Explain portion of the worksheet. Success is figuring out that the estimated magnitude is 5.9. Step 1: ans- d) 65 seconds Ste . Considered best for measuring small earthquakes (3.5 M or less). 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. Activity 4 Locating An Earthquake Epicenter Answers: Fill Out & Sign . 0000002009 00000 n 0000006984 00000 n inch = 500 km. Explain the difference between S and P waves, and how their time interval is used to determine the epicenter location. One seismogram indicates the distance to the epicenter. 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 Mr Gneiss. 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. 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. 0000002544 00000 n 0000001533 00000 n 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. Figure 2 is a seismic wave travel-time Refer to the data table and use the difference in arrival times to determine the distance to the earthquake epicenter for Station 2. d>(ZvO= !5(~q* The seismometers are shown as green dots. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. These natural disasters may be mitigated, however, by insightful and creative engineering. Great exercise for Regents Earth Science. Develop a solution to a technological problem that has the least negative environmental and social impact. 2. A.45 seconds B.50 seconds C.55 seconds D.65 seconds Answer Key: D Subject Areas: The earthquake occurred somewhere along that circle. For lower grades, just introduce the concepts of triangulation and the magnitude scale; a thorough understanding of P and S waves is not vital. If a quake is far from the seismograph, the P-waves arrive long before the S-waves. 9 - 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. 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Richter magnitude scale: An earthquake measurement scale created in the 1930s to assign a single number to quantify the energy released during earthquakes. Quick Tips. Use Figure 5 and the travel-time graph in Figure 4 to determine . Most of these earthquakes are small tremors that cant be felt by people, but occasionally an earthquake occurs on a large magnitude that causes millions of dollars in property damage and kills hundreds to thousands of people. time for any point that is 3,000 miles 0000030504 00000 n 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. [N'. 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.