activity 4 locating an earthquake epicenter answer key

0000005544 00000 n 83 0 obj <> endobj Practicing this technique, the students work several problems on a map of the US. 1. How does the Mad Scientist. ACTIVITY 4.2B Locating an Earthquake Figure 4.5 shows seismograms for the same earthquake recorded at three locations - New York, Nome, Alaska, and Mexico City. 1. Seismographs - Keeping Track of Earthquakes | U.S. Geological Survey 0000001143 00000 n Free K-12 standards-aligned STEM curriculum for educators everywhere. ACTIVITY 4.2B Locating an Earthquake Figure 4.5 shows - Chegg 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. HTn {0,`K6}(J6]&Q^"!q57y_VQ9fp3/?Mc=KGsrrt:c\$Lh`4}>C>`qcSj0[YpZ_Su(322/N Z./$E )H %C[5ph[BUyGh7|!XPQiDjJ(|BNvylk+g;9G(#Aby>Jcf`XmnwtDD+;Z^I&Sb-4!7oi` L7 endstream endobj 78 0 obj <> endobj 79 0 obj <>stream 0000007783 00000 n 3. epicenter - the point on Earth's surface directly above the focus, or origin, of an earthquake. 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. earthquakes. So the difference in the P- and S-wave arrival times determines the distance between the epicenter and a seismometer. Epicenter Location on Earth's surface directly above the focus of the earthquake 5. Pwaves have the greatest velocity and reach theseismic station first. Details. Copyright USGS http://earthquake.usgs.gov/learn/kids/eqscience.php. The answer is the San Andreas Fault. 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. important in helping seismologists determine the epicenter of the earthquake. For example, the western United States has earthquakes more frequently and on a larger scale than the eastern part of the country. Was there an initial quake followed by smaller quakes? Lab Activity Locating Epicenters Teaching Resources | TPT How far do S waves travel in 5 13.4: Locating an Earthquake Epicenter - Geosciences LibreTexts (i. Great exercise for Regents Earth Science. 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. 0000007097 00000 n HTn0MmcHCB (Source: USGS). locating the epicenter of an earthquake activity - TeachersPayTeachers Many updates and improvements! Figure 2. (Grades hb```f``Rl@ (l"`+uk?0.a~@6Vm;| G3f`75@v@Wz|A4#w9{(` ) Sign, fax and printable from PC, iPad, tablet or mobile with pdfFiller Note-taking Worksheet. (, 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. Locating Earthquake Epicenters ( Read ) | Earth Science Contact the teacher to find out the length of the class period, as well as how many copies of handouts and sets of materials you need to bring. You can also download it, export it or print it out. The point where your ruler crosses the middle line on the chart marks the magnitude (strength) of the earthquake. Accessed December 11, 2013. http://www.sciencecourseware.com/virtualearthquake/, USGS Earthquake Magnitude Policy (implemented on January 18, 2002). View Notes - Locating_an_epicenter_activity from SCIENCE Earth Scie at Toms River High North. American Geosciences Institute. PDF Finding Epicenters and Measuring Magnitudes Worksheet 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. Read through the sections What Is Seismology and What Are Seismic Waves?, Where Do Earthquakes Happen?, and Why Do Earthquakes Happen? to answer the following questions: What is the difference between S and P waves? 0000001396 00000 n See Answer. 17 Station St., Ste 3 Brookline, MA 02445. 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. Students learn about factors that engineers take into consideration when designing buildings for earthquake-prone regions. 61 0 obj <> endobj xref m>r/Q[6 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. The western U.S. has more faults than the eastern U.S., and therefore the western U.S. has more earthquakes. These natural disasters may be mitigated, however, by insightful and creative engineering. Reading Strategy. Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org. (Source: USGS, Wikipedia). PDF EARTHQUAKE EPICENTER LOCATION EXERCISE - Idaho geology Three seismographs are needed. PDF EARTHQUAKES: Epicenter Determination, Seismic Waves, and Hazards - WOU 0000005149 00000 n Earthquakes occur along faults, which are cracks in the Earths crust that build tension. To locate the epicenter of the earthquake, seismologists use the . A little under 30 seconds, maybe around 26 seconds. HS-PS4-1. The American Geosciences Institute represents and serves the geoscience community by providing collaborative leadership and information to connect Earth, science, and people. First locate and mark the three seismic stations on the world map provided below. Now on the main page of the Earthquakes Living Lab website (see Figure 2), note the featuring of four active seismic areas and the mapping of real-time and current data from earthquakes happening around the world. 0000006538 00000 n 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. Geologists use seismic waves to locate an earthquake's epicenter. PDF Lecture 3 Activity: Locating an Earthquake Epicenter 500p;333aXb3 \a.1. In the ASN, standards are hierarchically structured: first by source; e.g., by state; within source by type; e.g., science or mathematics; Wikipedia, The Free Encyclopedia. earthquake. Refer to the data table and use the difference in arrival times to determine the distance to the earthquake epicenter for Station 2. 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. The three seismograms in this activity are unfi ltered station records from a single event that occurred on August 1, 1999. Using 3 seismograms the students will be able to triangulate the epicenter of an earthquake. 13 4 locating an earthquake epicenter geosciences libretexts . The distance to the earthquake epicenter is then determined using the "Earthquake P-Wave and S-Wave Travel Time" graph. Solved Lab Exercise #2: Locating the Epicenter of an - Chegg S wave: The second seismic wave of an earthquake. Do you agree with this alignment? It takes S waves 14. In order to determine the location of an earthquake epicenter, seismographs from at least three different places are needed for a particular event. 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. 0000001746 00000 n Success is figuring out that the estimated magnitude is 5.9. 0000115324 00000 n Thus, the Richter scale is used for measuring small earthquakes (3.5 M or less), while the moment magnitude scale is used for measuring stronger earthquakes (3.5 M or higher). 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. The moment magnitude scale (MMS) was developed in the 1970s as a modification of the Richter scale and is better for measuring big earthquakes but less good for small ones. Earthquakes can also cause tsunamis, which are very large waves that can damage coastlines and put coastal residents in danger. 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. PDF ActivityEarthquake Location* - Cascadia Earthscope Earthquake and Every year, earthquakes cause death and destruction worldwide. epicenter of an earthquake, how P and S arrivals, you can now locate an earthquake your answers below. 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. and S waves depends on the distance from the epicenter of the answer the following question. 0 Accessed December 11, 2013. http://earthquake.usgs.gov/aboutus/docs/020204mag_policy.php. 0000002009 00000 n 6. This investigation is considered generally safe to do with students. Millions of people witnessed the motion of the earthquake on television. Get the inside scoop on all things TeachEngineering such as new site features, curriculum updates, video releases, and more by signing up for our newsletter! 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. This activity is designed around the Earthquakes Living Lab, a resource and online interface that uses real-time U.S. Geological Survey seismic data from around the world. P wave: The first seismic wave of an earthquake. The point beneath Earth's surface where rock breaks under stress and causes an earthquake. During an earthquake, seismic waves are sent all over the globe. 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. Copyright 2023. Though the distance to the epicenter can be determined using a travel-time graph, the direction cannot be told. We have answers to the most popular questions from our customers. 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. Use of the TeachEngineering digital library and this website constitutes acceptance of our Terms of Use and Privacy Policy. seismograph: An instrument that measures motions of the ground, including those of seismic waves generated by earthquakes. trailer <<0444DE89825047A1A483C62E98F50868>]>> startxref 0 %%EOF 114 0 obj <>stream How Can I Locate the Earthquake Epicenter? | Michigan Technological Triangulation to Locate an Earthquake By Earthquake Hazards Original Thumbnail Medium Detailed Description Triangulation can be used to locate an earthquake. 0000001604 00000 n to the lag time measured at this location? What did it feel like? The simulation renders three circles on a map and directs students to find the epicenter. 6.17: Locating Earthquake Epicenters - K12 LibreTexts Draw your signature, type it, upload its image, or use your mobile device as a signature pad. Several thousand seismographs exist at locations around the planet, continuously measuring abnormalities in the Earth's movement. This is determined by the P-and S-wave arrival times. Learn more How Can I Locate the Earthquake Epicenter? How is the magnitude of an earthquake determined? d>(ZvO= Locating an Epicenter Activity - Arkansas Geological Survey DocHub v5.1.1 Released! The magnitude determination is based on seismic data. located 1,000 miles from the I also will take them through the general process of how find the difference in arrival times of p- and s-waves can be used to find a distance to an earthquake and how using data from 3 seismograph stations is used to locate the epicenter. Triangulation and Magnitude: Student pairs complete the worksheet, which includes following a tutorial/simulation accessed through the Earthquakes Living Lab. 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! "`B(R6sj [CX7p+s =#;~ `'kA Resources. 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. Material is sheared side to side, perpendicular to the direction of wave propagation. 0000000856 00000 n They make a model of a seismographa measuring device that records an earthquake on a seismogram. (from left to right). minutes? The longer the time is between the P-and S-wave . PDF Page - 1 Lab 08 - Seismology - Locating the Epicenter of an Earthquake Ch Person/Attorney Filing: - Superior Court - Maricopa County - superiorcourt maricopa. Finding the epicenter worksheet answer key. pen recorded the arrival of P, S, and surface Encourage them to explore all of the Earthquakes Living Lab as they complete the worksheet. $8.25. The, amount of time that passes between the Pwave arrival and the Swave arrival is. Hand out the worksheets to the groups and direct them to read through the instructions. What data is used to determine magnitude? It is called triangulation because a triangle has three sides, and it takes three seismographs to locate an earthquake. The hypocenter is the point within the earth where an earthquake rupture starts. activity illustrates how the epicenter of an earthquake is found. Sharing Information/Thinking Ahead: In the Evaluate section of the worksheet, student pairs are asked to compose answers to two questionswhether they think seismology is a reliable science and ways seismic data is useful for engineers. An earthquake is the violent movement of tectonic plates in the Earth's crust. HtA1D41`s(GME$Ke*YdEOYf2-:r. 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. within type by subtype, then by grade, etc. Though they may weaken with distance, seismographs are sensitive enough to still detect these waves. Earthquakes and Seismic Waves Key Concepts . Great-circle arcs are drawn on the globe using the distance of the earthquake to the station as a radius. Figure 2 is a seismic wave travel-time 0000002840 00000 n triangulation: A method to determine exactly where an earthquake originates. Earthquake Worksheet Answers What about P waves? Click on New Document and select the file importing option: upload Locating the epicenter of an earthquake worksheet answer key from your device, the cloud, or a protected link. ya{I;W@DgMN2:UtbT=*+cY1.8Vm(u3Zt"J @9TAjJH@H_F3n7\Srdw~gAR#JQGj`ueS! /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$II'y ??O's^3@[{*{VT?nsNS!ilq]mFO?? 0000078100 00000 n HS]o01j6R0iMm4U=wL8]BE< Point on Earth's surface directly above an earthquake's focus. 0000000956 00000 n 0000002383 00000 n Mr Gneiss. To make a magnitude determination, two measurements are needed: the S-P interval (already determined earlier in the tutorial) and the maximum amplitude of the seismic waves. The Richter scale was created in the 1930s to assign a single number to quantify the energy released during earthquakes. Lab Activity Locating Epicenters Flashcards | Quizlet Therefore, the lag Analyze and interpret data on natural hazards to forecast future catastrophic events and inform the development of technologies to mitigate their effects. As the drum rotated, the Y$Kr;V6[;Dq vg~cx:A[^jCssupwD endstream endobj 80 0 obj <> endobj 81 0 obj <>stream EARTHQUAKES: Epicenter Determination and Seismic Waves First locate and mark the three seismic stations on the world map provided below.

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