and S waves depends on the distance from the epicenter of the answer the following question. If you complete all the problems, you should be able to: Identify P, S, and surface waves on a simple seismogram. 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. Epicenter Location on Earth's surface directly above the focus of the earthquake 5. Success is figuring out that the epicenter is just off the coast of Chile, where the three circles intersect. Earthquakes and Seismic Waves Key Concepts . The farther a station is from the 0000010002 00000 n First, determine the P-wave arrival, and read down to the bottom of the seismogram to note at what time (usually marked in seconds) that the P-wave arrived. This opens a new window to Michigan Techs UPSeis informational site about earthquakes and seismology. A. Seismic waves-waves generated by an earthquake, can move the ground forward and back- answers the question. 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 If a quake is near the seismograph, the S-waves arrive shortly after the P-waves. These distances are determined using a travel-time curve, which is a graph of Pand S-wave arrival times (see Figure 13.11). Describe the logarithmic nature of the earthquake magnitude scale. So the difference in the P- and S-wave arrival times determines the distance between the epicenter and a seismometer. The point of origin of an earthquake is called its focus and the point on the Earth's surface directly above the focus is the epicenter. 0000004457 00000 n Virtual Earthquake (tutorial/simulation) 1996. Figure 2 is a seismic wave travel-time All rights reserved. Focus. Earthquakes Living Lab: Finding Epicenters and Measuring Magnitudes ActivityWorksheet Example Answers 4 now big earthquakes are measured using the moment magnitude scale; both scales essentially rank the power (energy release) of the earthquake. For example, 0000003991 00000 n To abbreviate, use the symbol M (a capital M, plain text, no sub/superscripts) expressed to the nearest 0.1. The three seismograms in this activity are unfi ltered station records from a single event that occurred on August 1, 1999. In order to determine the location of an earthquake epicenter, seismographsfrom at least three different places are needed for a particular event. Graphs, charts, and images can be used to identify patterns in data. This worksheet focuses on using the p and s graph to find different variables. and S waves to travel any distance up to 0000009174 00000 n Record your answer from Lab Exercise #2, Step 1. Analyze and interpret data on natural hazards to forecast future catastrophic events and inform the development of technologies to mitigate their effects. How many minutes elapsed between the arrival of the first P wave and the last measurable Ch Person/Attorney Filing: - Superior Court - Maricopa County - superiorcourt maricopa. For this activity, select the "Chile" box. gov For online instructions and current fees click here. 0000001777 00000 n 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. 0000001746 00000 n The seismometers are shown as green dots. If the lag time were measured at a location closer to the epicenter, The period of a wave is the time between two adj, How does the period of the P waves compare to t. Use data from seismograms to locate the epicenters of earthquakes. 0000002009 00000 n Student exploration Graphing Skills SE Key Gizmos Explore Learning. Note the differences in Earthquakes & Volcanoes Test Review Answers. Finding the Epicenter Determine the epicenter distance from three different seismographs. Therefore, the lag Richter magnitude scale: An earthquake measurement scale created in the 1930s to assign a single number to quantify the energy released during earthquakes. It shows the time required for P E}g7$i(=K)"aj%v]vPcYloi@X3noGX{[XucOgkdF.>Ym^fwrQf;8_Nok3w\;?n_Hhc?>k\o[%DgwJ'3d.lTqDy_aJw! Pwaves have the greatest velocity and reach theseismic station first. How are S and P waves used to determine how far away epicenters are? Show students some of the numerous online animations comparing the movements of P and S waves. 9 - 0000001143 00000 n m>r/Q[6 0000055643 00000 n Direct student pairs to independently complete the tutorial/simulation to find an epicenter location via the triangulation method and compute the earthquake magnitude: The simulation directs students to look at three simplified seismograms from seismic stations in Chile (Talca, Santiago, Osorno) and select the correct measurements of the S-P intervals. waves from a distant earthquake. Many updates and improvements! Considered best for measuring small earthquakes (3.5 M or less). 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. Use mathematical representations of phenomena or design solutions to describe and/or support claims and/or explanations. The western U.S. has more faults than the eastern U.S., and therefore the western U.S. has more earthquakes. within type by subtype, then by grade, etc. So next, students compute the magnitude of this same earthquake by looking at the three simplified seismograms again, but this time selecting each's maximum S wave amplitude (height). farther from the epicenter of an earthquake? Looking at the nomogram, students click on each location data point to see where the three lines intersect to read the estimated magnitude. 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 . Earthquakes and Volcanoes. 12), Analyze and interpret data about natural hazards using direct and indirect evidence During an earthquake, seismic waves are sent all over the globe. minutes = 6 minutes. Triangulation is required to determine exactly where it happened. surface wave? Wikipedia, The Free Encyclopedia. (Grades 6 - 8). Make changes to the sample. 0000008845 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"? A little under 30 seconds, maybe around 26 seconds. Divide the class into student pairs, and have them assemble at their computers with journals/paper and writing instruments. ' 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 How does the lag time change as you get farther and miles from the epicenter of an 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? It's a logarithmic scale from 1 to 10 with each succeeding level representing 10 times as much energy as the last. 1. How does the period of the P waves compare to the period of the surface waves? 0000030240 00000 n Thus, the Richter scale is used for measuring small earthquakes (3.5 M or less), while the moment magnitude scale is used for measuring stronger earthquakes (3.5 M or higher). (Figure 3):. 0000005544 00000 n 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. lag time. 0000001862 00000 n Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org. Locating An Earthquake Epicenter Lab Answers Thank you for reading Locating An Earthquake Epicenter Lab Answers . hb```f``Rl@ (l"`+uk?0.a~@6Vm;| G3f`75@v@Wz|A4#w9{(` ) The longer the time between the arrival of the P-wave and S-wave, the farther away is the epicenter. What is an earthquake? Using 3 seismograms the students will be able to triangulate the epicenter of an earthquake. The spot where those three circles intersect is the epicenter (Figure 13.12). Follow this simple guide to edit Locating the epicenter of an earthquake worksheet answer key in PDF format online free of charge: Explore all the advantages of our editor right now! Epicenter. 5 4. Tracings made at three separate seismic stations are needed to locate an earthquake epicenter. 0000002094 00000 n They make a model of a seismographa measuring device that records an earthquake on a seismogram. different types of seismic waves. Thanks for your feedback! PS: We do not share personal information or emails with anyone. Locating The Epicenter Of An Earthquake Worksheet Answers, Content Outline Earthquakes For Teaching - Mrs. Parsiola's Homepage, Earthquakes & Volcanoes Test Review Answers, Earthquake Facts & Worksheets | Mechanism, Impact, Events, Quiz & Worksheet - Causes Of Earthquakes - Study.com, 15 Bill Nye - Earthquakes Worksheet Key | PDF - Scribd, Bill Nye-The Science Guy * - Biloxi Public Schools, psc plus two level preliminary exam syllabus pdf 2023, first tuesday real estate principles exam answers, ies exam pattern for mechanical engineering, resultados examen practico dgt las palmas, exame de sangue precisa de quanto tempo de jejum, sslc question paper 2023 karnataka pdf with answers social science, examen de formacion civica y etica tercer grado secundaria, ctet exam date 2023 application form last date, why is it important to do self breast exams, quanto tempo depois de infectado pelo hiv aparece no exame. The magnitude determination is based on seismic data. Use this information to complete the following. Have students turn in their answers for the Explain portion of the worksheet. 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. Develop a solution to a technological problem that has the least negative environmental and social impact. 0000003254 00000 n xb``d``Id`a`Ab@_ :iWGi>|q` How do we determine the epicenter of an earthquake? What data is used to determine magnitude? 0000006538 00000 n Accessed December 11, 2013. http://earthquake.usgs.gov/aboutus/docs/020204mag_policy.php. Answer Key: Lab 5 Earthquakes - Find People EARTHQUAKES: Epicenter Determination and Seismic Waves . Through the online Earthquakes Living Lab, student pairs explore various types of seismic waves and the differences between shear waves and compressional waves. Pwaves have the greatest velocity and reach the, seismic station first. 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. approximate period of the surface waves in seconds? Several thousand seismographs exist at locations around the planet, continuously measuring abnormalities in the Earth's movement. (Grades Earth and Space, Physical Science, A process called triangulation uses seismic data from three locations to identify the epicenter of an earthquake.copyrightCopyright USGS http://earthquake.usgs.gov/learn/kids/eqscience.php. hb```b````e``n`d@ A 'EF''oquE"ky#:}m;9JmkPt~=unFHy&|X:70 vILZ*|%6mD! 0000007097 00000 n Collect any giveaways for the students, such as earthquake posters or plate tectonic fliers. Use Figure 5 and the travel-time graph in Figure 4 to determine . 12), Evaluate ways that technology can impact individuals, society, and the environment. earthquakes. To locate the epicenter of the earthquake, seismologists use the . What did it feel like? /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?? To make a magnitude determination, two measurements are needed: the S-P interval (already determined earlier in the tutorial) and the maximum amplitude of the seismic waves. Point on Earth's surface directly above an earthquake's focus. Success is figuring out that the estimated magnitude is 5.9. This is determined by the P-and S-wave arrival times. What data is used to determine magnitude? P and Swaves are body waves and travelthrough the interior of the earth. 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. epicenter: A point on the Earth's surface that is directly above the place where the underground forces of an earthquake originate. Also commonly termed the focus. In Figure 13.9, there is an example seismogram from a station that includes a minor earthquake. 0000007783 00000 n 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? 0000002658 00000 n Free K-12 standards-aligned STEM curriculum for educators everywhere. After this activity, students should be able to: Each TeachEngineering lesson or activity is correlated to one or more K-12 science, 17 Station St., Ste 3 Brookline, MA 02445. S-P interval: The time interval between the arrivals of P and S waves. A circle with a radius of the distance to the quake can be drawn. For example, the western United States has earthquakes more frequently and on a larger scale than the eastern part of the country. 0000001604 00000 n 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 87 0 obj <> endobj xref 87 28 0000000016 00000 n Facility Name Busine Child ren Information Child Name C. Child Social Security Number Type of Case being filed - Check only one category. The distance to the earthquake epicenter is then determined using the "Earthquake P-Wave and S-Wave Travel Time" graph. Make arrangements so that each student group has a computer with Internet access.