Another method of locating an earthquake is to use the P-wave arrival-time minus origin-time (P - O) interval instead of distance. P wave: The first seismic wave of an earthquake. S-P interval: The time interval between the arrivals of P and S waves. 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. How many minutes elapsed between the arrival of the first P wave and the last measurable (Source: USGS, Wikipedia). The time It travels faster than the same earthquake's S wave (almost double the speed) and is similar to sound waves. To abbreviate, use the symbol M (a capital M, plain text, no sub/superscripts) expressed to the nearest 0.1. To complete the activity, some prior . The spot where those three circles intersect is the epicenter (Figure 13.12). Every earthquake is recorded on numerous seismographs located in different directions. (Figure 3):. Success is figuring out that the epicenter is just off the coast of Chile, where the three circles intersect. pen recorded the arrival of P, S, and surface 0000001562 00000 n All 100,000+ K-12 STEM standards covered in TeachEngineering are collected, maintained and packaged by the Achievement Standards Network (ASN), Refer to the data table and use the difference in arrival times to determine the distance to the earthquake epicenter for Station 2. 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. The Richter scale was created in the 1930s to assign a single number to quantify the energy released during earthquakes. 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. Answer the following questions in the spaces provided. d>(ZvO= Copyright USGS http://earthquake.usgs.gov/learn/kids/eqscience.php. 1. Facility Name Busine Child ren Information Child Name C. Child Social Security Number Type of Case being filed - Check only one category. 74 Earthquake Activity: Locating the Epicenter and Time of Earthquake . 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 0000005081 00000 n 1. Dochub is the best editor for changing your documents online. 0000002840 00000 n 0000001533 00000 n Subjects: to the lag time measured at this location? Free K-12 standards-aligned STEM curriculum for educators everywhere. Have students turn in their answers for the Explain portion of the worksheet. If you complete all the problems, you should be able to: Identify P, S, and surface waves on a simple seismogram. (5 minutes) Discuss how gathering information on epicenters can be applied. Students also investigate which structural designs are most likely to survive an earthquake. 0000030968 00000 n Objective Use data from seismograms to locate the epicenters of earthquakes. To locate the epicenter of the earthquake, seismologists use the . 0000006984 00000 n Make changes to the sample. 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. 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. How might they use this information? Three seismographs are needed. 11 minutes elapsed between the first P wave and the last measurable surface wave. Have students click on the Earthquakes Living Lab hyperlink in the top left in the earthquakes section. Describe what the "magnitude" of an earthquake is. All the arcs should intersect at a common point - the epicenter. 0000005544 00000 n At least 3 earthquake recording stations are required to find the location of the earthquake epicenter. 1) Identify the general term for waves released from an earthquake. 0000004457 00000 n Doing this generates an S-P interval graph (time vs. distance, called the travel-time curve graph) from which they determine and select three epicentral distances. 0000002009 00000 n The vertical lines, spaced one, minute apart, represent the passage of time, (from left to right). 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. !5(~q* Many updates and improvements! 0000007097 00000 n 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. S waves. HTAn distance = travel time for S waves Through the online Earthquakes Living Lab, student pairs explore various types of seismic waves and the differences between shear waves and compressional waves. Show students some of the numerous online animations comparing the movements of P and S waves. Triangulation to Locate an Earthquake By Earthquake Hazards Original Thumbnail Medium Detailed Description Triangulation can be used to locate an earthquake. 0000001746 00000 n 0000103591 00000 n (Grades Student exploration Graphing Skills SE Key Gizmos Explore Learning. CH 02 HW - Chapter 2 physics homework for Mastering, Leadership class , week 3 executive summary, I am doing my essay on the Ted Talk titaled How One Photo Captured a Humanitie Crisis https, School-Plan - School Plan of San Juan Integrated School, SEC-502-RS-Dispositions Self-Assessment Survey T3 (1), Techniques DE Separation ET Analyse EN Biochimi 1, Use a travel-time graph to convert lag time into distance. 5. focus - the point within Earth where an earthquake originates. trailer <<0444DE89825047A1A483C62E98F50868>]>> startxref 0 %%EOF 114 0 obj <>stream If a quake is far from the seismograph, the P-waves arrive long before the S-waves. 0000003966 00000 n See Answer. HS-PS4-1. 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. 0000005149 00000 n The farther away the epicenter is, the greater the difference . a project of D2L (www.achievementstandards.org). Students learn what causes earthquakes, how we measure and locate them, and their effects and consequences. 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. earthquake - shaking and vibration of Earth's surface. 0000053998 00000 n Section A - Operator Information 1. Figure 1 is a simplified example of a 61 0 obj <> endobj xref 500p;333aXb3 \a.1. Quick Tips. So the difference in the P- and S-wave arrival times determines the distance between the epicenter and a seismometer. Students learn about the types of seismic waves produced by earthquakes and how they move through the Earth. Therefore, the lag Triangulation is required to determine exactly where it happened. Great-circle arcs are drawn on the globe using the distance of the earthquake to the station as a radius. First locate and mark the three seismic stations on the world map provided below. An earthquake is what happens when two blocks of the earth suddenly slip past one directly above it on the surface of the earth is called the epicenter. 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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! El trmino tambin puede hacer referencia al ttulo o nombre de alguien a quien se di, Practica II - De Psicologian 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. Assess their understanding based on the thoroughness of their answers. Choose an answer and hit 'next'. 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Type text, add images, blackout confidential details, add comments, highlights and more. Then do the same for the S-wave. As you may know, people have look numerous times for . 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. triangulation: A method to determine exactly where an earthquake originates. Focus (aka Hypocenter) is the location in the Earth where the earthquake starts. 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. PS: We do not share personal information or emails with anyone. different types of seismic waves. gov For online instructions and current fees click here. 0000009174 00000 n Today, most seismologists no longer follow Richter's original methodology because it does not give reliable results when applied to stronger earthquakes and it was not designed to use data from earthquakes recorded at epicentral distances greater than ~600 km. Finally, the location of the 3 seismographs are placed on a map and the distance to the epicenter is used to draw a circle with an origin at each seismograph and a radius equal to the distance to the epicenter as taken from each seismogram. Students first triangulate the location of an earthquake's epicenter, then calculate its magnitude. They use three seismographs in a process called triangulation to determine earthquake epicenters. atrial depolarization. This is determined by the P-and S-wave arrival times. Record your answer from Lab Exercise #2, Step 1. hb```f``Rl@ (l"`+uk?0.a~@6Vm;| G3f`75@v@Wz|A4#w9{(` ) Share with Classes. The distance to the earthquake epicenter is then determined using the "Earthquake P-Wave and S-Wave Travel Time" graph. Tips: Make sure students are reading the S waves and not the P waves. Focus. The farther a station is from the Encourage them to explore all of the Earthquakes Living Lab as they complete the worksheet. aqmd. Civilization and its Discontents (Sigmund Freud), Educational Research: Competencies for Analysis and Applications (Gay L. R.; Mills Geoffrey E.; Airasian Peter W.), Brunner and Suddarth's Textbook of Medical-Surgical Nursing (Janice L. Hinkle; Kerry H. Cheever), Psychology (David G. Myers; C. Nathan DeWall), The Methodology of the Social Sciences (Max Weber), Business Law: Text and Cases (Kenneth W. Clarkson; Roger LeRoy Miller; Frank B. Using 3 seismograms the students will be able to triangulate the epicenter of an earthquake. 4. fault - a fracture in Earth's crust where the rocks on either side have moved. Though they may weaken with distance, seismographs are sensitive enough to still detect these waves. Do you think we will someday be able to prevent earthquakes? 5 4. The real-world earthquake data is viewable via a graphical interface using a scaling map. The distance is in kilometers. 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. 3. epicenter - the point on Earth's surface directly above the focus, or origin, of an earthquake. approximate period of the surface waves in seconds? Pwaves have the greatest velocity and reach theseismic station first. For example, the western United States has earthquakes more frequently and on a larger scale than the eastern part of the country. How can you locate an earthquake's epicenter? We additionally manage to pay for . minute apart, represent the passage of time 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 . : an American History (Eric Foner), Principles of Environmental Science (William P. Cunningham; Mary Ann Cunningham), Forecasting, Time Series, and Regression (Richard T. O'Connell; Anne B. Koehler), Chemistry: The Central Science (Theodore E. Brown; H. Eugene H LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward), Biological Science (Freeman Scott; Quillin Kim; Allison Lizabeth), Campbell Biology (Jane B. Reece; Lisa A. Urry; Michael L. Cain; Steven A. Wasserman; Peter V. Minorsky), How many minutes elapsed between the arrival of the first P wave and. 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. What data is used to determine magnitude? Geologists use seismic waves to locate an earthquake's epicenter. m>r/Q[6 0000003254 00000 n After this activity, students should be able to: Each TeachEngineering lesson or activity is correlated to one or more K-12 science, What is the time lag for the Seattle, Washington, seismic station? 12), Evaluate ways that technology can impact individuals, society, and the environment. The living lab presents earthquake information through a focus on four active seismic areas and historic earthquakes in those areas. How do we determine the epicenter of an earthquake? 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? Learn from this informative and clear video.Brought you by award-winning Once each student has constructed his or her circle on the map, mark with an X, the epicenter of the earthquake. 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." How does the Mad Scientist. Review their answers to assess their base knowledge of the subject matter. Since the 1970s, the use of the Richter magnitude scale has largely been replaced in the scientific community by the moment magnitude scale (MMS). 0000001675 00000 n between arrival of P and S waves is called endstream endobj 84 0 obj <> endobj 85 0 obj <> endobj 86 0 obj <>stream
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