activity 4 locating an earthquake epicenter answer key

The three seismograms in this activity are unfi ltered station records from a single event that occurred on August 1, 1999. Do you agree with this alignment? Review their answers to assess their base knowledge of the subject matter. Use of the TeachEngineering digital library and this website constitutes acceptance of our Terms of Use and Privacy Policy. All 100,000+ K-12 STEM standards covered in TeachEngineering are collected, maintained and packaged by the Achievement Standards Network (ASN), Student exploration Graphing Skills SE Key Gizmos Explore Learning. 9 - Finding the Epicenter. In Figure 13.9, there is an example seismogram from a station that includes a minor earthquake. m>r/Q[6 Once three seismographs have been located, find the time interval between the arrival of the P-wave . The vertical lines, spaced one The, amount of time that passes between the Pwave arrival and the Swave arrival is. !5(~q* 0000001893 00000 n Collect any giveaways for the students, such as earthquake posters or plate tectonic fliers. Do limits exist on what science can predict? Describe the logarithmic nature of the earthquake magnitude scale. The travel-time graph 0000003991 00000 n View Notes - Locating_an_epicenter_activity from SCIENCE Earth Scie at Toms River High North. THREE SEISMOGRAMS Seismogram A - New York, NY 1 minute 1. This opens a new window to Michigan Techs UPSeis informational site about earthquakes and seismology. Use this information to complete the following. Great exercise for Regents Earth Science. How far do S waves travel in 5 Use the process of triangulation to locate an earthquake's epicenter. Through the online Earthquakes Living Lab, student pairs explore various types of seismic waves and the differences between shear waves and compressional waves. Accessed December 11, 2013. http://earthquake.usgs.gov/aboutus/docs/020204mag_policy.php. earthquake. To do this, have the students use, Find the epicenter of the earthquake on the map (. If the lag time were measured at a location closer to the epicenter, how would it compare The real-world earthquake data is viewable via a graphical interface using a scaling map. surface wave? 4. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. Multiply the difference by 8.4 to estimate the distance, in kilometers, from the seismograph station to the epicenter. 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. The spot where those three circles intersect is the epicenter (Figure 13.12). Add to Library. 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. Another method of locating an earthquake is to use the P-wave arrival-time minus origin-time (P - O) interval instead of distance. 0000031066 00000 n Finding the Epicenter Determine the epicenter distance from three different seismographs. EARTHQUAKES: Epicenter Determination and Seismic Waves First locate and mark the three seismic stations on the world map provided below. and S waves depends on the distance from the epicenter of the answer the following question. Practice with Triangulation: Locating an earthquake epicenter. HTn0MmcHCB As you may know, people have look numerous times for . 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. 0000002009 00000 n An earthquake is the violent movement of tectonic plates in the Earth's crust. Mr Gneiss. *The NGSS logo is a registered trademark of WestEd. The arrival of seismic waves will be recognized by an increase in amplitude look for a pattern change as lines get taller and more closely spaced (ex. 0000006984 00000 n earthquake though). Lab Exercise #2: Locating the Epicenter of an Earthquake In this lab exercise, you will locate the epicenter of an earthquake. 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. 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." Do you agree with this alignment? 9 - If you can't find an answer to your question, please contact us. The USGS now uses the MMS to estimate magnitudes for all modern large earthquakes. Of the four Earthquakes Living Lab seismic areas, choose the "Chile" box, as shown in Figure 3. HtA1D41`s(GME$Ke*YdEOYf2-:r. 0000008845 00000 n 12), Evaluate ways that technology can impact individuals, society, and the environment. If a quake is far from the seismograph, the P-waves arrive long before the S-waves. Seismic stations detect earthquakes by the tracings made on seismographs. 0000010002 00000 n consider a seismograph stationed 3, Virtual Earthquake (tutorial/simulation) 1996. Share with Classes. Short for "primary wave" or "pressure wave." El trmino tambin puede hacer referencia al ttulo o nombre de alguien a quien se diri, Online Education Strategies (UNIV 1001 - AY2021-T), Advanced Care of the Adult/Older Adult (N566), Advanced Design Studio in Lighting (THET659), Introduction to Health Information Technology (HIM200), Biological Principles II and Lab (BIOL 107/L), PHIL ethics and social responsibility (PHIL 1404), Foundational Concepts & Applications (NR-500), Introduction To Project Management Software (CSBU539), Professional Application in Service Learning I (LDR-461), Advanced Anatomy & Physiology for Health Professions (NUR 4904), Principles Of Environmental Science (ENV 100), Operating Systems 2 (proctored course) (CS 3307), Comparative Programming Languages (CS 4402), Business Core Capstone: An Integrated Application (D083), BSC 2085-Study Guide - Dr. Alfonso Pino - Online course, Lecture notes, lecture all lectures - lecture notes from professor alan klein, Full Graded Quiz Unit 3 - Selection of my best coursework, EES 150 Lesson 2 Our Restless Planet Structure, Energy, & Change, General Chemistry I - Chapter 1 and 2 Notes, 1-2 Short Answer- Cultural Objects and Their Culture, Historia de la literatura (linea del tiempo), ACCT 2301 Chapter 1 SB - Homework assignment. 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. What is an earthquake? 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. 74 Earthquake Activity: Locating the Epicenter and Time of Earthquake . Once three seismographs have been located, find the time interval between the arrival of the P-wave and the arrival of the S-wave. Do you agree with this alignment? The longer the time between the arrival of the P-wave and S-wave, the farther away is the epicenter. This is determined by the P-and S-wave arrival times. 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! H\0y 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. Epicenter Location on Earth's surface directly above the focus of the earthquake 5. Earthquakes and Seismic Waves Key Concepts . Locating the epicenter of an earthquake worksheet answer key, locating the epicenter of an earthquake worksheet pdf, chapter 7 lab 1 locating epicenters answer key, how many seismographs are needed to locate the epicenter of an earthquake. Earthquakes Living Lab: Finding Epicenters & Measuring Magnitudes. 3. epicenter - the point on Earth's surface directly above the focus, or origin, of an earthquake. ?t?s=Yt '_( endstream endobj 76 0 obj <>stream How are S and P waves used to determine how far away epicenters are? travel time for P waves. One seismogram indicates the distance to the epicenter. Activity4:LocatinganEarthquakeEpicenter Objectives:Ifyoucompletealltheproblems,youshouldbeableto: Identif endstream endobj 84 0 obj <> endobj 85 0 obj <> endobj 86 0 obj <>stream 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? 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. 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. How do we determine the epicenter of an earthquake? Add to FlexBook Textbook. Why might the triangulation method not always produce an exact point (other than your measurement errors)? For lower grades, just introduce the concepts of triangulation and the magnitude scale; a thorough understanding of P and S waves is not vital. trailer <<0444DE89825047A1A483C62E98F50868>]>> startxref 0 %%EOF 114 0 obj <>stream 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. /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?? 12), Seek, evaluate, and use a variety of specialized resources available from libraries, the Internet, and the community to find scientific information on Earth's history Develop a solution to a technological problem that has the least negative environmental and social impact. Seismic Waves. Finding the epicenter worksheet answer key. You will analyze the records and locate the earthquake using a method known Subjects: 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 . HlRnQ?R\>BjK' The Richter scale was created in the 1930s to assign a single number to quantify the energy released during earthquakes. Resources. Step 1: ans- d) 65 seconds Ste . 01. Students learn about the types of seismic waves produced by earthquakes and how they move through the Earth. 0000001736 00000 n Question 5 of 22 4.55/ 4.55 Points Questions 5 through 11 are based on Lab Exercise #2: Locating the Epicenter of an Earthquake. (Grades Must engineers be content with mitigating disasters, instead of preventing them? 0000004511 00000 n Figure 1 is a simplified example of a It shows the time required for P 87 0 obj <> endobj xref 87 28 0000000016 00000 n Divide the class into student pairs, and have them assemble at their computers with journals/paper and writing instruments. trailer <<320C1F98F8FF4795B5CCB8D9E9A0B99B>]/Prev 812054/XRefStm 1396>> startxref 0 %%EOF 93 0 obj <>stream Edit your locating an earthquake epicenter worksheet answers online. 0000002383 00000 n The epicenter is the point directly above it at the surface of the Earth. Section 8.1 What Is an Earthquake? The calculated distance from each seismometer to the earthquake is shown as a circle. 6. 5. focus - the point within Earth where an earthquake originates. 0000001777 00000 n You learned that seismologists determine the distance to the earthquake epicenter using the difference between S and P wave arrival times. 0000004457 00000 n 1) Identify the general term for waves released from an earthquake. 0000078100 00000 n (Grades 6 - 8). HS-PS4-1. Facility Name Busine Child ren Information Child Name C. Child Social Security Number Type of Case being filed - Check only one category. Explains how to find an earthquake epicenter using at least three seismograph stations. In Figure 13.9, there is an example seismogram from a station that includes a minor earthquake. %PDF-1.5 % 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. Triangulation is required to determine exactly where it happened. The magnitude determination is based on seismic data. 2. $8.25. 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. For example, If less precision is desired, precede M with a tilde, such as "M ~7" or "magnitude ~6.8.". Students first triangulate the location of an earthquake's epicenter, then calculate its magnitude. What types of engineers might use this data the most? At least 3 earthquake recording stations are required to find the location of the earthquake epicenter. (i. aqmd. epicenter of an earthquake, how Geologists use seismic waves to locate an earthquake's epicenter. If a quake is near the seismograph, the S-waves arrive shortly after the P-waves. If your seismograph station is earthquakes. Some places are more prone to earthquakes than others. 0000098546 00000 n (from left to right). 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 endstream endobj 77 0 obj <>stream 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. locate and label the epicenter of the earthquake on this map. 0000005081 00000 n What data is used to determine magnitude? There are two sets of data and maps to do this activity/ lab for than once. Alignment agreement: Last modified July 18, 2012. If a quake is far from the seismograph, the P-waves arrive long before the S-waves. Focal Depth. 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. directly above it on the surface of the earth is called the epicenter. 5 4. The living lab presents earthquake information through a focus on four active seismic areas and historic earthquakes in those areas. ya{I;W@DgMN2:UtbT=*+cY1.8Vm(u3Zt"J @9TAjJH@H_F3n7\Srdw~gAR#JQGj`ueS! To abbreviate, use the symbol M (a capital M, plain text, no sub/superscripts) expressed to the nearest 0.1. Figure 13.10). HTAn Subject Areas: The distance to the earthquake epicenter is then determined using the "Earthquake P-Wave and S-Wave Travel Time" graph. Pwaves have the greatest velocity and reach the, seismic station first. The American Geosciences Institute represents and serves the geoscience community by providing collaborative leadership and information to connect Earth, science, and people. 12), computer or other device with Internet access, journal or writing paper for each student. Yw8SxGk}X3kfTfW& gk`41#'uf7"G\fsN4^8jC7[+%`qFLFKpFc 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. To complete the activity, some prior . atrial depolarization. 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. 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. PS: We do not share personal information or emails with anyone. from the epicenter will be 14 8. Legal. Earthquakes can also cause tsunamis, which are very large waves that can damage coastlines and put coastal residents in danger. [*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 Key Facts & Information. 0000004224 00000 n In order to determine the location of an earthquake epicenter, seismographs from at least three different places are needed for a particular event. The process is called triangulation. 0000002840 00000 n 0000079769 00000 n (Grades HS]o01j6R0iMm4U=wL8]BE< Run through the investigation yourself and record the data, just to see how long it takes. Locating an Epicenter through Triangulation of Seismic Data- Remote/Hybrid/Live. Make changes to the sample. 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. 0000004769 00000 n Success is figuring out that the epicenter is just off the coast of Chile, where the three circles intersect. After this activity, students should be able to: Each TeachEngineering lesson or activity is correlated to one or more K-12 science, Therefore, the lag minutes and P waves 8 minutes to Locating Earthquake Epicenter Lab Answer Key buysms de. 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. %PDF-1.4 % 15 Bill Nye - Earthquakes Worksheet Key Earthquakes occur when the big pieces of earth's crust, called plates, move a little. Show students some of the numerous online animations comparing the movements of P and S waves. Every earthquake is recorded on numerous seismographs located in different directions. Mapping the history of natural hazards in a region, combined with an understanding of related geologic forces can help forecast the locations and likelihoods of future events. 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"? Upload a document. (, 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. First locate and mark the three seismic stations on the world map provided below. Assess their understanding based on the thoroughness of their answers. What did it feel like? long will it take, to the nearest 0. minutes, for the first P waves to travel from the epicenter to your station? Using 3 seismograms the students will be able to triangulate the epicenter of an earthquake. 0000007783 00000 n and S waves to travel any distance up to The point where your ruler crosses the middle line on the chart marks the magnitude (strength) of the earthquake. Focus (aka Hypocenter) is the location in the Earth where the earthquake starts. S waves. Adjust the timing to the class period, remembering that you will need time to introduce the investigation, clean up afterwards, and re-set up for the next class (if you are working with more than one class). 0000004060 00000 n Earthquakes occur along faults, which are cracks in the Earths crust that build tension. Triangulation to Locate an Earthquake By Earthquake Hazards Original Thumbnail Medium Detailed Description Triangulation can be used to locate an earthquake. Describe the process of triangulation to locate an epicenter. Locating the Epicenter of an Earthquake - SE Asia a foldable activity, slide presentation to guide reading, and an answer key! (, Have any of you ever experienced an earthquake or know anyone who has? Apr 8, 2020 One seismogram indicates the distance 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. earthquake - shaking and vibration of Earth's surface. Conclude the activity with a class discussion (and perhaps homework questions) to share ideas and answers, as described in the Assessment section. Ask students what fault they think caused this earthquake. What are those limits? Even though the scale formulae are different, MMS retains the familiar continuum of magnitude values defined by the older scale. How might they use this information? approximate period of the surface waves in seconds? 0000001861 00000 n How many minutes elapsed between the arrival of the first P wave and the last measurable hbbd``b`$C`q9 X_$_g`bdxc`X Cross), Give Me Liberty! How can you locate an earthquake's epicenter? activity 4 locating an earthquake epicenter The Science of Earthquakes | U.S. Geological Survey An earthquake is what happens when two blocks of the earth suddenly slip past one . So the difference in the P- and S-wave arrival times determines the distance between the epicenter and a seismometer. 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. 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. The farther a station is from the Refer to the data table and use the difference in arrival times to determine the distance to the earthquake epicenter for Station 2. They use three seismographs in a process called triangulation to determine earthquake epicenters. How does the period of the P waves compare to the period of the surface waves? Wikipedia, The Free Encyclopedia. Empirical evidence is required to differentiate between cause and correlation and make claims about specific causes and effects. A minimum of three seismic stations is necessary to locate an epicenter. 0000009174 00000 n 0000002250 00000 n seismograph: An instrument that measures motions of the ground, including those of seismic waves generated by earthquakes. 61 0 obj <> endobj xref 0000053998 00000 n endstream endobj startxref It travels faster than the same earthquake's S wave (almost double the speed) and is similar to sound waves. (Grades 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. Today we will be using a traveltime graph, where the vertical separation between, the P and S curves is equal to the difference in the arrival times between the Pwave, and Swave. 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. 0000002544 00000 n A. Seismic waves-waves generated by an earthquake, can move the ground forward and back- answers the question. Earthquakes and Volcanoes. To accurately locate an earthquake epicenter, records from three. Based on your answers to the previous question, what is the lag time for locations that are The period of P waves is shorter, than the period of surface waves. The western U.S. has more faults than the eastern U.S., and therefore the western U.S. has more earthquakes. waves from a distant earthquake. Click for facts and worksheets in PDF! 0000103591 00000 n P and S arrivals, you can now locate an earthquake your answers below. Several thousand seismographs exist at locations around the planet, continuously measuring abnormalities in the Earth's movement. When the tension becomes too great, the fault slips, causing an earthquake. Place a ruler (or straight edge) on the chart between the points you marked for the distance to the epicenter and the amplitude. (Source: USGS, Wikipedia). The USGS and its partners monitor and report earthquakes, assess earthquake impacts and hazards, and . 12), Analyze and interpret data about natural hazards using direct and indirect evidence 0000005544 00000 n 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. 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. 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. The seismometers are shown as green dots.

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activity 4 locating an earthquake epicenter answer key

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The three seismograms in this activity are unfi ltered station records from a single event that occurred on August 1, 1999. Do you agree with this alignment? Review their answers to assess their base knowledge of the subject matter. Use of the TeachEngineering digital library and this website constitutes acceptance of our Terms of Use and Privacy Policy. All 100,000+ K-12 STEM standards covered in TeachEngineering are collected, maintained and packaged by the Achievement Standards Network (ASN), Student exploration Graphing Skills SE Key Gizmos Explore Learning. 9 - Finding the Epicenter. In Figure 13.9, there is an example seismogram from a station that includes a minor earthquake. m>r/Q[6 Once three seismographs have been located, find the time interval between the arrival of the P-wave . The vertical lines, spaced one The, amount of time that passes between the Pwave arrival and the Swave arrival is. !5(~q* 0000001893 00000 n Collect any giveaways for the students, such as earthquake posters or plate tectonic fliers. Do limits exist on what science can predict? Describe the logarithmic nature of the earthquake magnitude scale. The travel-time graph 0000003991 00000 n View Notes - Locating_an_epicenter_activity from SCIENCE Earth Scie at Toms River High North. THREE SEISMOGRAMS Seismogram A - New York, NY 1 minute 1. This opens a new window to Michigan Techs UPSeis informational site about earthquakes and seismology. Use this information to complete the following. Great exercise for Regents Earth Science. How far do S waves travel in 5 Use the process of triangulation to locate an earthquake's epicenter. Through the online Earthquakes Living Lab, student pairs explore various types of seismic waves and the differences between shear waves and compressional waves. Accessed December 11, 2013. http://earthquake.usgs.gov/aboutus/docs/020204mag_policy.php. earthquake. To do this, have the students use, Find the epicenter of the earthquake on the map (. If the lag time were measured at a location closer to the epicenter, how would it compare The real-world earthquake data is viewable via a graphical interface using a scaling map. surface wave? 4. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. Multiply the difference by 8.4 to estimate the distance, in kilometers, from the seismograph station to the epicenter. 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. The spot where those three circles intersect is the epicenter (Figure 13.12). Add to Library. 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. Another method of locating an earthquake is to use the P-wave arrival-time minus origin-time (P - O) interval instead of distance. 0000031066 00000 n Finding the Epicenter Determine the epicenter distance from three different seismographs. EARTHQUAKES: Epicenter Determination and Seismic Waves First locate and mark the three seismic stations on the world map provided below. and S waves depends on the distance from the epicenter of the answer the following question. Practice with Triangulation: Locating an earthquake epicenter. HTn0MmcHCB As you may know, people have look numerous times for . 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. 0000002009 00000 n An earthquake is the violent movement of tectonic plates in the Earth's crust. Mr Gneiss. *The NGSS logo is a registered trademark of WestEd. The arrival of seismic waves will be recognized by an increase in amplitude look for a pattern change as lines get taller and more closely spaced (ex. 0000006984 00000 n earthquake though). Lab Exercise #2: Locating the Epicenter of an Earthquake In this lab exercise, you will locate the epicenter of an earthquake. 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. 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." Do you agree with this alignment? 9 - If you can't find an answer to your question, please contact us. The USGS now uses the MMS to estimate magnitudes for all modern large earthquakes. Of the four Earthquakes Living Lab seismic areas, choose the "Chile" box, as shown in Figure 3. HtA1D41`s(GME$Ke*YdEOYf2-:r. 0000008845 00000 n 12), Evaluate ways that technology can impact individuals, society, and the environment. If a quake is far from the seismograph, the P-waves arrive long before the S-waves. Seismic stations detect earthquakes by the tracings made on seismographs. 0000010002 00000 n consider a seismograph stationed 3, Virtual Earthquake (tutorial/simulation) 1996. Share with Classes. Short for "primary wave" or "pressure wave." El trmino tambin puede hacer referencia al ttulo o nombre de alguien a quien se diri, Online Education Strategies (UNIV 1001 - AY2021-T), Advanced Care of the Adult/Older Adult (N566), Advanced Design Studio in Lighting (THET659), Introduction to Health Information Technology (HIM200), Biological Principles II and Lab (BIOL 107/L), PHIL ethics and social responsibility (PHIL 1404), Foundational Concepts & Applications (NR-500), Introduction To Project Management Software (CSBU539), Professional Application in Service Learning I (LDR-461), Advanced Anatomy & Physiology for Health Professions (NUR 4904), Principles Of Environmental Science (ENV 100), Operating Systems 2 (proctored course) (CS 3307), Comparative Programming Languages (CS 4402), Business Core Capstone: An Integrated Application (D083), BSC 2085-Study Guide - Dr. Alfonso Pino - Online course, Lecture notes, lecture all lectures - lecture notes from professor alan klein, Full Graded Quiz Unit 3 - Selection of my best coursework, EES 150 Lesson 2 Our Restless Planet Structure, Energy, & Change, General Chemistry I - Chapter 1 and 2 Notes, 1-2 Short Answer- Cultural Objects and Their Culture, Historia de la literatura (linea del tiempo), ACCT 2301 Chapter 1 SB - Homework assignment. 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. What is an earthquake? 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. 74 Earthquake Activity: Locating the Epicenter and Time of Earthquake . Once three seismographs have been located, find the time interval between the arrival of the P-wave and the arrival of the S-wave. Do you agree with this alignment? The longer the time between the arrival of the P-wave and S-wave, the farther away is the epicenter. This is determined by the P-and S-wave arrival times. 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! H\0y 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. Epicenter Location on Earth's surface directly above the focus of the earthquake 5. Earthquakes and Seismic Waves Key Concepts . Locating the epicenter of an earthquake worksheet answer key, locating the epicenter of an earthquake worksheet pdf, chapter 7 lab 1 locating epicenters answer key, how many seismographs are needed to locate the epicenter of an earthquake. Earthquakes Living Lab: Finding Epicenters & Measuring Magnitudes. 3. epicenter - the point on Earth's surface directly above the focus, or origin, of an earthquake. ?t?s=Yt '_( endstream endobj 76 0 obj <>stream How are S and P waves used to determine how far away epicenters are? travel time for P waves. One seismogram indicates the distance to the epicenter. Activity4:LocatinganEarthquakeEpicenter Objectives:Ifyoucompletealltheproblems,youshouldbeableto: Identif endstream endobj 84 0 obj <> endobj 85 0 obj <> endobj 86 0 obj <>stream 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? 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. 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. How do we determine the epicenter of an earthquake? Add to FlexBook Textbook. Why might the triangulation method not always produce an exact point (other than your measurement errors)? For lower grades, just introduce the concepts of triangulation and the magnitude scale; a thorough understanding of P and S waves is not vital. trailer <<0444DE89825047A1A483C62E98F50868>]>> startxref 0 %%EOF 114 0 obj <>stream 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. /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?? 12), Seek, evaluate, and use a variety of specialized resources available from libraries, the Internet, and the community to find scientific information on Earth's history Develop a solution to a technological problem that has the least negative environmental and social impact. Seismic Waves. Finding the epicenter worksheet answer key. You will analyze the records and locate the earthquake using a method known Subjects: 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 . HlRnQ?R\>BjK' The Richter scale was created in the 1930s to assign a single number to quantify the energy released during earthquakes. Resources. Step 1: ans- d) 65 seconds Ste . 01. Students learn about the types of seismic waves produced by earthquakes and how they move through the Earth. 0000001736 00000 n Question 5 of 22 4.55/ 4.55 Points Questions 5 through 11 are based on Lab Exercise #2: Locating the Epicenter of an Earthquake. (Grades Must engineers be content with mitigating disasters, instead of preventing them? 0000004511 00000 n Figure 1 is a simplified example of a It shows the time required for P 87 0 obj <> endobj xref 87 28 0000000016 00000 n Divide the class into student pairs, and have them assemble at their computers with journals/paper and writing instruments. trailer <<320C1F98F8FF4795B5CCB8D9E9A0B99B>]/Prev 812054/XRefStm 1396>> startxref 0 %%EOF 93 0 obj <>stream Edit your locating an earthquake epicenter worksheet answers online. 0000002383 00000 n The epicenter is the point directly above it at the surface of the Earth. Section 8.1 What Is an Earthquake? The calculated distance from each seismometer to the earthquake is shown as a circle. 6. 5. focus - the point within Earth where an earthquake originates. 0000001777 00000 n You learned that seismologists determine the distance to the earthquake epicenter using the difference between S and P wave arrival times. 0000004457 00000 n 1) Identify the general term for waves released from an earthquake. 0000078100 00000 n (Grades 6 - 8). HS-PS4-1. Facility Name Busine Child ren Information Child Name C. Child Social Security Number Type of Case being filed - Check only one category. Explains how to find an earthquake epicenter using at least three seismograph stations. In Figure 13.9, there is an example seismogram from a station that includes a minor earthquake. %PDF-1.5 % 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. Triangulation is required to determine exactly where it happened. The magnitude determination is based on seismic data. 2. $8.25. 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. For example, If less precision is desired, precede M with a tilde, such as "M ~7" or "magnitude ~6.8.". Students first triangulate the location of an earthquake's epicenter, then calculate its magnitude. What types of engineers might use this data the most? At least 3 earthquake recording stations are required to find the location of the earthquake epicenter. (i. aqmd. epicenter of an earthquake, how Geologists use seismic waves to locate an earthquake's epicenter. If a quake is near the seismograph, the S-waves arrive shortly after the P-waves. If your seismograph station is earthquakes. Some places are more prone to earthquakes than others. 0000098546 00000 n (from left to right). 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 endstream endobj 77 0 obj <>stream 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. locate and label the epicenter of the earthquake on this map. 0000005081 00000 n What data is used to determine magnitude? There are two sets of data and maps to do this activity/ lab for than once. Alignment agreement: Last modified July 18, 2012. If a quake is far from the seismograph, the P-waves arrive long before the S-waves. Focal Depth. 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. directly above it on the surface of the earth is called the epicenter. 5 4. The living lab presents earthquake information through a focus on four active seismic areas and historic earthquakes in those areas. ya{I;W@DgMN2:UtbT=*+cY1.8Vm(u3Zt"J @9TAjJH@H_F3n7\Srdw~gAR#JQGj`ueS! To abbreviate, use the symbol M (a capital M, plain text, no sub/superscripts) expressed to the nearest 0.1. Figure 13.10). HTAn Subject Areas: The distance to the earthquake epicenter is then determined using the "Earthquake P-Wave and S-Wave Travel Time" graph. Pwaves have the greatest velocity and reach the, seismic station first. The American Geosciences Institute represents and serves the geoscience community by providing collaborative leadership and information to connect Earth, science, and people. 12), computer or other device with Internet access, journal or writing paper for each student. Yw8SxGk}X3kfTfW& gk`41#'uf7"G\fsN4^8jC7[+%`qFLFKpFc 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. To complete the activity, some prior . atrial depolarization. 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. 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. PS: We do not share personal information or emails with anyone. from the epicenter will be 14 8. Legal. Earthquakes can also cause tsunamis, which are very large waves that can damage coastlines and put coastal residents in danger. [*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 Key Facts & Information. 0000004224 00000 n In order to determine the location of an earthquake epicenter, seismographs from at least three different places are needed for a particular event. The process is called triangulation. 0000002840 00000 n 0000079769 00000 n (Grades HS]o01j6R0iMm4U=wL8]BE< Run through the investigation yourself and record the data, just to see how long it takes. Locating an Epicenter through Triangulation of Seismic Data- Remote/Hybrid/Live. Make changes to the sample. 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. 0000004769 00000 n Success is figuring out that the epicenter is just off the coast of Chile, where the three circles intersect. After this activity, students should be able to: Each TeachEngineering lesson or activity is correlated to one or more K-12 science, Therefore, the lag minutes and P waves 8 minutes to Locating Earthquake Epicenter Lab Answer Key buysms de. 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. %PDF-1.4 % 15 Bill Nye - Earthquakes Worksheet Key Earthquakes occur when the big pieces of earth's crust, called plates, move a little. Show students some of the numerous online animations comparing the movements of P and S waves. Every earthquake is recorded on numerous seismographs located in different directions. Mapping the history of natural hazards in a region, combined with an understanding of related geologic forces can help forecast the locations and likelihoods of future events. 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"? Upload a document. (, 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. First locate and mark the three seismic stations on the world map provided below. Assess their understanding based on the thoroughness of their answers. What did it feel like? long will it take, to the nearest 0. minutes, for the first P waves to travel from the epicenter to your station? Using 3 seismograms the students will be able to triangulate the epicenter of an earthquake. 0000007783 00000 n and S waves to travel any distance up to The point where your ruler crosses the middle line on the chart marks the magnitude (strength) of the earthquake. Focus (aka Hypocenter) is the location in the Earth where the earthquake starts. S waves. Adjust the timing to the class period, remembering that you will need time to introduce the investigation, clean up afterwards, and re-set up for the next class (if you are working with more than one class). 0000004060 00000 n Earthquakes occur along faults, which are cracks in the Earths crust that build tension. Triangulation to Locate an Earthquake By Earthquake Hazards Original Thumbnail Medium Detailed Description Triangulation can be used to locate an earthquake. Describe the process of triangulation to locate an epicenter. Locating the Epicenter of an Earthquake - SE Asia a foldable activity, slide presentation to guide reading, and an answer key! (, Have any of you ever experienced an earthquake or know anyone who has? Apr 8, 2020 One seismogram indicates the distance 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. earthquake - shaking and vibration of Earth's surface. Conclude the activity with a class discussion (and perhaps homework questions) to share ideas and answers, as described in the Assessment section. Ask students what fault they think caused this earthquake. What are those limits? Even though the scale formulae are different, MMS retains the familiar continuum of magnitude values defined by the older scale. How might they use this information? approximate period of the surface waves in seconds? 0000001861 00000 n How many minutes elapsed between the arrival of the first P wave and the last measurable hbbd``b`$C`q9 X_$_g`bdxc`X Cross), Give Me Liberty! How can you locate an earthquake's epicenter? activity 4 locating an earthquake epicenter The Science of Earthquakes | U.S. Geological Survey An earthquake is what happens when two blocks of the earth suddenly slip past one . So the difference in the P- and S-wave arrival times determines the distance between the epicenter and a seismometer. 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. 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. The farther a station is from the Refer to the data table and use the difference in arrival times to determine the distance to the earthquake epicenter for Station 2. They use three seismographs in a process called triangulation to determine earthquake epicenters. How does the period of the P waves compare to the period of the surface waves? Wikipedia, The Free Encyclopedia. Empirical evidence is required to differentiate between cause and correlation and make claims about specific causes and effects. A minimum of three seismic stations is necessary to locate an epicenter. 0000009174 00000 n 0000002250 00000 n seismograph: An instrument that measures motions of the ground, including those of seismic waves generated by earthquakes. 61 0 obj <> endobj xref 0000053998 00000 n endstream endobj startxref It travels faster than the same earthquake's S wave (almost double the speed) and is similar to sound waves. (Grades 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. Today we will be using a traveltime graph, where the vertical separation between, the P and S curves is equal to the difference in the arrival times between the Pwave, and Swave. 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. 0000002544 00000 n A. Seismic waves-waves generated by an earthquake, can move the ground forward and back- answers the question. Earthquakes and Volcanoes. To accurately locate an earthquake epicenter, records from three. Based on your answers to the previous question, what is the lag time for locations that are The period of P waves is shorter, than the period of surface waves. The western U.S. has more faults than the eastern U.S., and therefore the western U.S. has more earthquakes. waves from a distant earthquake. Click for facts and worksheets in PDF! 0000103591 00000 n P and S arrivals, you can now locate an earthquake your answers below. Several thousand seismographs exist at locations around the planet, continuously measuring abnormalities in the Earth's movement. When the tension becomes too great, the fault slips, causing an earthquake. Place a ruler (or straight edge) on the chart between the points you marked for the distance to the epicenter and the amplitude. (Source: USGS, Wikipedia). The USGS and its partners monitor and report earthquakes, assess earthquake impacts and hazards, and . 12), Analyze and interpret data about natural hazards using direct and indirect evidence 0000005544 00000 n 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. 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. 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. The seismometers are shown as green dots. Behr Smoky White, How To Refill Dior J'adore Travel Spray, Peters Township School District Employment, Articles A

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