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 . Explain the difference between S and P waves, and how their time interval is used to determine the epicenter location. What is the time lag for the Seattle, Washington, seismic station? Tracings made at three separate seismic stations are needed to locate an earthquake epicenter. Earthquakes and Seismic Waves - carlisleschools.org 5 4. In this 1-to-10 logarithmic scale, each succeeding level representing 10 times as much energy as the last. Mark the first arrival of the swave on each seismogram. approximate period of the surface waves in seconds? What about P waves? 12), Analyze and interpret data about natural hazards using direct and indirect evidence 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. For example, Make changes to the sample. Solved Lab Exercise #2: Locating the Epicenter of an - Chegg from the epicenter will be 14 8. Type text, add images, blackout confidential details, add comments, highlights and more. Share with Classes. Objective Use data from seismograms to locate the epicenters of earthquakes. The travel-time graph (Source: USGS, Wikipedia). 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. You learned that seismologists determine the distance to the earthquake epicenter using the difference between S and P wave arrival times. Since the 1970s, the use of the Richter magnitude scale has largely been replaced in the scientific community by the moment magnitude scale (MMS). For lower grades, just introduce the concepts of triangulation and the magnitude scale; a thorough understanding of P and S waves is not vital. Lab Activity Locating Epicenters Flashcards | Quizlet Using historical seismographs, engineers forecast the strength or magnitude of earthquakes and make predictions and determine building codes and safety protocols. 0000001893 00000 n Activity: Locating an Earthquake Epicenter Lecture 3 Damage from the earthquake was widespread, but the actual location of the earthquake (the epicenter) This is determined by the P-and S-wave arrival times. 0000010002 00000 n 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). Have students click on the Earthquakes Living Lab hyperlink in the top left in the earthquakes section. If you complete all the problems, you should be able to: Identify P, S, and surface waves on a simple seismogram. 0000002658 00000 n What was the lag time (in minutes) at this location? Students learn how engineers build shake tables that simulate the ground motions of the Earth caused by seismic waves in order to test the seismic performance of buildings. 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. Identify P, S, and surface waves on seismograms, Measure amplitude and lag time on seismograms, Use triangulation to accurately locate the epicenter of an earthquake, Accurately report the latitude and longitude of the epicenter, Sea Floor Lab Help with Problem 2 - Tagged, Metamorphic Rocks Lab Instructions - Tagged, Lab exam 2 - Study guide for the second exam regarding all the labs and material covered, Redaccion de textos II Marco n membrete es aquello que se ubica en el sector superior de una pgina, mencionando el ttulo o el nombre de un individuo, una empresa, etc. Details. What is an earthquake? X!.43p2t!}SLx-3z.KN4X+H\+vk? locating the epicenter of an earthquake activity - TeachersPayTeachers 61 0 obj <> endobj xref Answer the following questions in the spaces provided. https://people.wou.edu/~taylors/gs104/lab5key.pdf Locating Earthquake Epicenters | CK-12 Foundation Apr 8, 2020 . 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 m>r/Q[6 This section explains what earthquakes and faults are and what causes earthquakes. Graphs, charts, and images can be used to identify patterns in data. One seismogram indicates the distance to the epicenter. For upper grades, have students work individually, do two of the three seismic area tutorials, and look up historical earthquakes to learn their magnitudes, and make data tables or graphs with this information. In this investigation, participants will understand that S and P waves are used to find the epicenter of an earthquake by using seismograph data to triangulate an epicenter. You will receive your score and answers at the end. 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. 15 Bill Nye - Earthquakes Worksheet Key Earthquakes occur when the big pieces of earth's crust, called plates, move a little. In a concluding class discussion, have groups share their ideas about engineering and one new thing they learned about earthquakes. If a quake is near the seismograph, the S-waves arrive shortly after the P-waves. Richter magnitude scale: An earthquake measurement scale created in the 1930s to assign a single number to quantify the energy released during earthquakes. 0000006984 00000 n (Source: USGS). 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. 0000003991 00000 n The USGS and its partners monitor and report earthquakes, assess earthquake impacts and hazards, and . Considered best for measuring small earthquakes (3.5 M or less). Locating An Earthquake Epicenter Lab Answer Key 0000106240 00000 n travel time for P waves. Activity 4: Locating an Earthquake Epicenter, The three basic types of seismic wave generated by an earthquake at its focus are P, waves, Swaves, and Surface waves. HTAn How many minutes elapsed between the arrival of the first P wave and the last measurable 0000053998 00000 n (Listen to student ideas.) Activity 4 Locating An Earthquake Epicenter Answers: Fill Out & Sign . 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. seismograph: An instrument that measures motions of the ground, including those of seismic waves generated by earthquakes. 0000001533 00000 n Locating Earthquake Epicenter Lab Answer Key buysms de. We additionally manage to pay for . How does the Mad Scientist. 0000006011 00000 n ?t?s=Yt '_( endstream endobj 76 0 obj <>stream As the drum rotated, t, pen recorded the arrival of P, S, and surface, between arrival of P and S waves is called, epicenter, the longer the lag time measured, velocity, amplitude, and frequency of the. Direct students to finish the activity by completing the. atrial depolarization. (Grades If you can't find an answer to your question, please contact us. Use the process of triangulation to locate an earthquake's epicenter. Accessed December 11, 2013. http://earthquake.usgs.gov/aboutus/docs/020204mag_policy.php. They use three seismographs in a process called triangulation to determine earthquake epicenters. Use of the TeachEngineering digital library and this website constitutes acceptance of our Terms of Use and Privacy Policy. This is determined by the P-and S-wave arrival times. U.S. Geological Survey, U.S. Department of the Interior. P wave. question 1 of 3. "`B(R6sj [CX7p+s =#;~ `'kA 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. 0000004224 00000 n Even though the scale formulae are different, MMS retains the familiar continuum of magnitude values defined by the older scale. 0000001978 00000 n Use the graph to answer the questions that follow. 0000004457 00000 n The living lab presents earthquake information through a focus on four active seismic areas and historic earthquakes in those areas. 0000078169 00000 n Student exploration Graphing Skills SE Key Gizmos Explore Learning. H\0y 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. 9 - Locating Earthquake Epicenter Lab - Triangulation sheet for students and/or teachers to use (Slide 6), and answer key (Slide 7). The longer the time between the arrival of the P-wave and S-wave, the farther away is the epicenter. Add to Library. THREE SEISMOGRAMS Seismogram A - New York, NY 1 minute 1. View Notes - Locating_an_epicenter_activity from SCIENCE Earth Scie at Toms River High North. distance from transducer to the focal point. graph. 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 Send activity 4 locating an earthquake epicenter worksheet answers via email, link, or fax. 0000003855 00000 n Expert Answer. 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