Ask students what fault they think caused this earthquake. PDF Lecture 3 Activity: Locating an Earthquake Epicenter Multiply the difference by 8.4 to estimate the distance, in kilometers, from the seismograph station to the epicenter. It is called triangulation because a triangle has three sides, and it takes three seismographs to locate an earthquake. (Grades
Notify the classroom teacher of technology needs (overhead projector). 0000003855 00000 n
Apr 8, 2020 One seismogram indicates the distance to the epicenter. DocHub v5.1.1 Released! 0000007097 00000 n
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Then from the same recordings they determine the earthquake's magnitude, an estimate of the amount of energy released during the earthquake. In this activity, the epicenter of the earthquake is in the center of Los Angeles, CA. To abbreviate, use the symbol M (a capital M, plain text, no sub/superscripts) expressed to the nearest 0.1. Locating Earthquake Epicenter Teaching Resources | TPT 0000004457 00000 n
Also called seismometer. This is determined by the P-and S-wave arrival times. Lab Lesson 4 - Lab Lesson 4: Earthquakes and Seismology, Key Facts & Information. 61 0 obj
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Use the graph to answer the questions that follow. %PDF-1.4
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HtA1D41`s(GME$Ke*YdEOYf2-:r. These natural disasters may be mitigated, however, by insightful and creative engineering. 3. to the lag time measured at this location? Based on your answers to the previous question, what is the lag time for locations that are 0000033429 00000 n
Figure 1 is a simplified example of a seismogram. A. Seismic waves-waves generated by an earthquake, can move the ground forward and back- answers the question. What is an 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. 0000002094 00000 n
Draw your signature, type it, upload its image, or use your mobile device as a signature pad. (Grades
follow our easy steps to get your lab activity locating epicenters answer key well prepared rapidly choose the template in the library enter all necessary information in the required llable areas the Accessed December 11, 2013. http://www.sciencecourseware.com/virtualearthquake/, USGS Earthquake Magnitude Policy (implemented on January 18, 2002). 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. 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). determine the epicenter using the S P (S minus P) method. How does the lag time change as you get farther and Great-circle arcs are drawn on the globe using the distance of the earthquake to the station as a radius. 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. 92 0 obj
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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. You learned that seismologists determine the distance to the earthquake epicenter using the difference between S and P wave arrival times. Accessed December 11, 2013. http://earthquake.usgs.gov/aboutus/docs/020204mag_policy.php. 0000001408 00000 n
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PDF. In this activity, students use an online simulationVirtual Earthquakethat is accessible through the Earthquakes Living Lab interface, to locate the epicenter of an earthquake by making simple measurement on three seismograms, recordings of an earthquake's seismic waves detected by instruments (seismographs) far away from the earthquake. PDF EARTHQUAKE EPICENTER LOCATION EXERCISE - Idaho geology endstream
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approximate period of the surface waves in seconds? Develop a solution to a technological problem that has the least negative environmental and social impact. 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. 0000005544 00000 n
You will analyze the records and locate the earthquake using a method known 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. Activity 4 locating an earthquake epicenter answers: Fill out & sign 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? (Listen to student ideas.) inch = 500 km. Practicing this technique, the students work several problems on a map of the US. H\0y Locating_an_epicenter_activity - Activity4 - Course Hero 0
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Must engineers be content with mitigating disasters, instead of preventing them? xb``d``Id`a`Ab@_ :iWGi>|q` Then do the same for the S-wave. 12), Evaluate ways that technology can impact individuals, society, and the environment. 2. distance from transducer to the focal point. How is the magnitude of an earthquake determined? Note the differences in 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 . USGS Earthquake Hazards Program 9 -
The simulation renders three circles on a map and directs students to find the epicenter. Do you agree with this alignment? Seismographs - Keeping Track of Earthquakes | U.S. Geological Survey I contacted the persons listed below to find out the location of the following people entitled to notice Name of Person Measure the difference in arrival times between the first shear (s) wave and the first compressional (p) wave, which can be interpreted from the seismogram. 0000003254 00000 n
The period of a wave is the time between two adjacent wave peaks. Subjects: Earth Sciences, General Science Grades: 5th - 8th Types: Activities, Laboratory How does distance from the epicenter affect the magnitude (height) of the seismograph reading? Figure 2 is a seismic wave travel-time (Source: USGS, Wikipedia). *The NGSS logo is a registered trademark of WestEd. Sixty-seven people lost their lives, and property damage was estimated at $6 billion. If less precision is desired, precede M with a tilde, such as "M ~7" or "magnitude ~6.8.". Objective Use data from seismograms to locate the epicenters of earthquakes. Using historical seismographs, engineers forecast the strength or magnitude of earthquakes and make predictions and determine building codes and safety protocols. trailer
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Please answer the following questions using the earthquake video shake, shake, shake. 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. 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. 0000005149 00000 n
Epicenter. What is the 4. 0000001604 00000 n
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At least 3 earthquake recording stations are required to find the location of the earthquake epicenter. 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. to the lag time measured at this location? 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 example, within type by subtype, then by grade, etc. 0000001736 00000 n
In Figure 13.9, there is an example seismogram from a station that includes a minor earthquake. If a quake is near the seismograph, the S-waves arrive shortly after the P-waves. Hands-on Activity Earthquakes Living Lab: Finding Epicenters What are those limits? 0000001893 00000 n
Mr Gneiss. 3. epicenter - the point on Earth's surface directly above the focus, or origin, of an earthquake. %PDF-1.5
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So the difference in the P- and S-wave arrival times determines the distance between the epicenter and a seismometer. PS: We do not share personal information or emails with anyone. How does the Mad Scientist. pen recorded the arrival of P, S, and surface 0000055643 00000 n
https://people.wou.edu/~taylors/gs104/lab5key.pdf Locating Earthquake Epicenters | CK-12 Foundation Apr 8, 2020 . 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. 0000004511 00000 n
E}g7$i(=K)"aj%v]vPcYloi@X3noGX{[XucOgkdF.>Ym^fwrQf;8_Nok3w\;?n_Hhc?>k\o[%DgwJ'3d.lTqDy_aJw! 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. 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. 0000098546 00000 n
(Figure 3):. To complete the activity, some prior . Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org. While no one can predict earthquakes, knowing the intensities, frequencies and locations of past earthquakes and fault planes helps us to better anticipate the locations and forces to expect, so we can do our best to prepare our communities and infrastructure to withstand them safely. Make arrangements so that each student group has a computer with Internet access. Seismic stations detect earthquakes by the tracings made on seismographs. %PDF-1.3
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PDF Locating An Earthquake Epicenter Lab Answers - Full PDF Run through the investigation yourself and record the data, just to see how long it takes. 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. How might they use this information? 0000030968 00000 n
12), Analyze and interpret data about natural hazards using direct and indirect evidence
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vILZ*|%6mD! Students learn about the types of seismic waves produced by earthquakes and how they move through the Earth. $8.25. Copyright 2023. long will it take, to the nearest 0. minutes, for the first P waves to travel from the epicenter to your station? 0000002507 00000 n
Expert Answer. The lag time for any Finding the Epicenter Determine the epicenter distance from three different seismographs. How can you locate an earthquake's epicenter? If a quake is near the seismograph, the S-waves arrive shortly after the P-waves. 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 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. atrial depolarization. Cross), Give Me Liberty! 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. View Notes - Locating_an_epicenter_activity from SCIENCE Earth Scie at Toms River High North. Use this information to complete the following. Type text, add images, blackout confidential details, add comments, highlights and more. PDF Finding Epicenters and Measuring Magnitudes Worksheet Resources. Subjects: Locating an Epicenter Activity - Arkansas Geological Survey The instrument detects and documents the intensity, direction and duration of ground vibrations, which are used to determine the epicenters and strength/magnitudes of earthquakes or other seismic events. Many updates and improvements! Though they may weaken with distance, seismographs are sensitive enough to still detect these waves. One seismogram indicates the distance to the epicenter. Finding the epicenter of an Earthquake by Ah - Ha Lessons 5.0 (1) $3.00 PDF Activity This lesson teaches the student the process scientists use to locate the epicenter of an EQ. Use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media. 100 km 4.1 km/s 24.4 s; Finding the epicenter (continued) data table analyze and conclude answer the following questions on a separate sheet of paper. P and Swaves are body waves and travel, through the interior of the earth. Success is figuring out that the epicenter is just off the coast of Chile, where the three circles intersect. Yw8SxGk}X3kfTfW& gk`41#'uf7"G\fsN4^8jC7[+%`qFLFKpFc Finding the Epicenter. Activity: Locating an Earthquake Epicenter Lecture 3 Damage from the earthquake was widespread, but the actual location of the earthquake (the epicenter) (Grades 6 - 8). 9 -
minutes and P waves 8 minutes to Earthquakes & Volcanoes Test Review Answers. Step 1: ans- d) 65 seconds Ste . Was there an initial quake followed by smaller quakes? What about P waves? 2. 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. What data is used to determine magnitude? Triangulation to Locate an Earthquake By Earthquake Hazards Original Thumbnail Medium Detailed Description Triangulation can be used to locate an earthquake. Do you agree with this alignment? Assess their understanding based on the thoroughness of their answers. The living lab presents earthquake information through a focus on four active seismic areas and historic earthquakes in those areas. cCV&0Lw1~c\4QA!{q:
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Figure 13.10). There are two sets of data and maps to do this activity/ lab for than once. locating the epicenter of an earthquake activity - TeachersPayTeachers Tips: Make sure students are reading the S waves and not the P waves. Describe what the "magnitude" of an earthquake is. 61 33
This section explains what earthquakes and faults are and what causes earthquakes. 0000001533 00000 n
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Lab Activity Locating Epicenters Teaching Resources | TPT Triangulation is required to determine exactly where it happened. minute apart, represent the passage of time a project of D2L (www.achievementstandards.org). HlRnQ?R\>BjK' All the arcs should intersect at a common point - the epicenter. %%EOF
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Epicenter is the location on the surface of the Earth directly above where the earthquake starts. In this 1-to-10 logarithmic scale, each succeeding level representing 10 times as much energy as the last. 0000004769 00000 n
(Grades
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. Book: Laboratory Manual for Introductory Geology (Deline, Harris & Tefend), { "13.01:_Introduction" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.
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