One seismogram indicates the distance to the epicenter.
PDF Page - 1 Lab 08 - Seismology - Locating the Epicenter of an Earthquake Using historical seismographs, engineers forecast the strength or magnitude of earthquakes and make predictions and determine building codes and safety protocols. epicenter of an earthquake, how Direct student pairs to independently complete the tutorial/simulation to find an epicenter location via the triangulation method and compute the earthquake magnitude: The simulation directs students to look at three simplified seismograms from seismic stations in Chile (Talca, Santiago, Osorno) and select the correct measurements of the S-P intervals. !5(~q* 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. The epicenter of an earthquake can be found using the difference between the arrival of the Primary and Secondary waves. What is an earthquake? Tips: Make sure students are reading the S waves and not the P waves. 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. between arrival of P and S waves is called Accessed December 11, 2013. http://en.wikipedia.org/wiki/Moment_magnitude_scale, Novak, Gary. Figure 2. Students learn about factors that engineers take into consideration when designing buildings for earthquake-prone regions. Since the 1970s, the use of the Richter magnitude scale has largely been replaced in the scientific community by the moment magnitude scale (MMS). Practicing this technique, the students work several problems on a map of the US. 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.
PDF EARTHQUAKE EPICENTER LOCATION EXERCISE - Idaho geology A. Seismic waves-waves generated by an earthquake, can move the ground forward and back- answers the question. 1. The American Geosciences Institute represents and serves the geoscience community by providing collaborative leadership and information to connect Earth, science, and people. Fill Locating The Epicenter Of An Earthquake Worksheet Answers, Edit online. 0000000956 00000 n Another method of locating an earthquake is to use the P-wave arrival-time minus origin-time (P - O) interval instead of distance. 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.
How Can I Locate the Earthquake Epicenter? | Michigan Technological 0000001893 00000 n 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. 0000030968 00000 n The distance to the earthquake epicenter is then determined using the "Earthquake P-Wave and S-Wave Travel Time" graph. The point beneath Earth's surface where rock breaks under stress and causes an earthquake. The western U.S. has more faults than the eastern U.S., and therefore the western U.S. has more earthquakes. Use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media. 0000001533 00000 n Every year, earthquakes cause death and destruction worldwide. 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? Ask students what fault they think caused this earthquake. As you may know, people have look numerous times for . Do limits exist on what science can predict? xb``d``Id`a`Ab@_ :iWGi>|q` cCV&0Lw1~c\4QA!{q: N3\`Lccgb,x/if`WH3(\'q)Da'@ | endstream endobj 92 0 obj <>/Filter/FlateDecode/Index[57 4]/Length 20/Size 61/Type/XRef/W[1 1 1]>>stream To accurately locate an earthquake epicenter, records from three. This opens a new window to Michigan Techs UPSeis informational site about earthquakes and seismology. 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. MS-ESS3-2. surface wave? Do you agree with this alignment? 0000030504 00000 n Richter magnitude scale: An earthquake measurement scale created in the 1930s to assign a single number to quantify the energy released during earthquakes. Develop a solution to a technological problem that has the least negative environmental and social impact. 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. 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. atrial depolarization. When an earthquake strikes, P waves arrive at a seismograph rst and S waves next. 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It's a logarithmic scale from 1 to 10 with each succeeding level representing 10 times as much energy as the last. Focal Depth. All 100,000+ K-12 STEM standards covered in TeachEngineering are collected, maintained and packaged by the Achievement Standards Network (ASN), 0000106240 00000 n 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. 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 Resources. 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"? %%EOF Thanks for your feedback! In order to determine the location of an earthquake epicenter, seismographs from at least three different places are needed for a particular event. Three seismographs are needed. (Grades 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. 6. 9 - The Earthquakes Living Lab gives students the chance to track earthquakes across the planet and examine where, why and how they are occurring.
How do we determine the epicenter of an earthquake? 12), Evaluate ways that technology can impact individuals, society, and the environment. 1. 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. 17 Station St., Ste 3 Brookline, MA 02445. This worksheet focuses on using the p and s graph to find different variables. 0000031066 00000 n hb```b````e``n`d@ A 'EF''oquE"ky#:}m;9JmkPt~=unFHy&|X:70 vILZ*|%6mD! The period of P waves is shorter, than the period of surface waves. Figure 1 is a simplified example of a Entering the three maximum amplitudes generates a nomogram, a graphical device that simplifies the process of estimating magnitude from distance (determined earlier in the tutorial from the S-P interval process) and amplitude. Choose an answer and hit 'next'. 87 0 obj <> endobj xref 87 28 0000000016 00000 n All rights reserved.
Lab Lesson 4 - Lab Lesson 4: Earthquakes and Seismology, What was the lag time (in minutes) at this location? Students also investigate which structural designs are most likely to survive an earthquake. Thanks for your feedback! To complete the activity, some prior . 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. 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 P wave. locate and label the epicenter of the earthquake on this map. trailer <<320C1F98F8FF4795B5CCB8D9E9A0B99B>]/Prev 812054/XRefStm 1396>> startxref 0 %%EOF 93 0 obj <>stream 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. Please answer the following questions using the earthquake video shake, shake, shake. 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. You will receive your score and answers at the end. 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.
Solved Lab Exercise #2: Locating the Epicenter of an - Chegg 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. Find 23 millimeters on the right side of the chart and mark that point. Sign, fax and printable from PC, iPad, tablet or mobile with pdfFiller Note-taking Worksheet. Short for "primary wave" or "pressure wave."
Locating Earthquake Epicenter Teaching Resources | TPT Earthquakes & Volcanoes Test Review Answers.
Locating Earthquake Epicenter Worksheet Answer Key Material is sheared side to side, perpendicular to the direction of wave propagation. For example, the western United States has earthquakes more frequently and on a larger scale than the eastern part of the country.
Considered best for measuring small earthquakes (3.5 M or less). trailer <<0444DE89825047A1A483C62E98F50868>]>> startxref 0 %%EOF 114 0 obj <>stream aqmd. This page titled 13.4: Locating an Earthquake Epicenter is shared under a CC BY-SA license and was authored, remixed, and/or curated by Deline, Harris & Tefend (GALILEO Open Learning Materials) . If the lag time were measured at a location closer to the epicenter, how would it compare 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. 0 500 1000 1500 2000 2500 3000
PDF Locating an Epicenter Activity - Arkansas Geological Survey Step 1: ans- d) 65 seconds Ste . long will it take, to the nearest 0. minutes, for the first P waves to travel from the epicenter to your station? Pwaves have the greatest velocity and reach the, seismic station first. Do you think we will someday be able to prevent earthquakes? What types of engineers might use this data the most? 0000004224 00000 n HTAn 0000004060 00000 n 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. A single recording station can only calculate distance, but not direction; to cover all possibilities, a complete circle is drawn around that station. 0000009174 00000 n HTn0MmcHCB Collect any giveaways for the students, such as earthquake posters or plate tectonic fliers. The travel-time graph earthquake though). velocity, amplitude, and frequency of the Short for "secondary wave" or "shear wave." Sixty-seven people lost their lives, and property damage was estimated at $6 billion. 0000002009 00000 n 0000002507 00000 n 0000003966 00000 n It is slower than the same earthquake's P wave and cannot travel through liquids. epicenter: A point on the Earth's surface that is directly above the place where the underground forces of an earthquake originate. (Source: USGS). Use the process of triangulation to locate an earthquake's epicenter. 0000001861 00000 n and S waves depends on the distance from the epicenter of the answer the following question. Empirical evidence is required to differentiate between cause and correlation and make claims about specific causes and effects. Multiply the difference by 8.4 to estimate the distance, in kilometers, from the seismograph station to the epicenter. Earthquakes Living Lab: Finding Epicenters & Measuring Magnitudes. 0000003254 00000 n 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. 1.
Answers to the Finding the Epicenter Gizmos Lab - Name: Earthquakes 2 pen recorded the arrival of P, S, and surface Triangulation to Locate an Earthquake By Earthquake Hazards Original Thumbnail Medium Detailed Description Triangulation can be used to locate an earthquake. Add to Library. What data is used to determine magnitude?
PDF Locating An Earthquake Epicenter Lab Answers - Full PDF epicenter, the longer the lag time measured 0 Through the online Earthquakes Living Lab, student pairs explore various types of seismic waves and the differences between shear waves and compressional waves. 0000001143 00000 n
Locating Earthquake Epicenters ( Read ) | Earth Science Using this resource students find the arrival times of P-waves and S-waves using a seismogram. HlRnQ?R\>BjK' In this 1-to-10 logarithmic scale, each succeeding level representing 10 times as much energy as the last. 0000001736 00000 n 74 Earthquake Activity: Locating the Epicenter and Time of Earthquake . (Grades 9 - 12). Copyright 2023. Thanks for your feedback! Several thousand seismographs exist at locations around the planet, continuously measuring abnormalities in the Earth's movement. After this activity, students should be able to: Each TeachEngineering lesson or activity is correlated to one or more K-12 science, located 1,000 miles from the
(Listen to student ideas.) Alignment agreement: What is the 0000001562 00000 n Shear wave from earthquake, moving slower than primary waves, through solid material only. 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.
Earthquakes and Seismic Waves - carlisleschools.org Also commonly termed the focus. How does the lag time change as you get farther and directly above it on the surface of the earth is called the epicenter. 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. To locate the epicenter of the earthquake, seismologists use the . 0000002094 00000 n Locating the Epicenter of an Earthquake - SE Asia a foldable activity, slide presentation to guide reading, and an answer key! Epicenter. question 1 of 3. longer or shorter). 5. focus - the point within Earth where an earthquake originates. 0000002658 00000 n 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. How many minutes elapsed between the arrival of the first P wave and the last measurable Details. https://people.wou.edu/~taylors/gs104/lab5key.pdf Locating Earthquake Epicenters | CK-12 Foundation Apr 8, 2020 . 0000010002 00000 n
locating the epicenter of an earthquake activity - TeachersPayTeachers Three seismographs are needed. Once three seismographs have been located, find the time interval between the arrival of the P-wave . How is the magnitude of an earthquake determined? Explain the difference between S and P waves, and how their time interval is used to determine the epicenter location. 15 Bill Nye - Earthquakes Worksheet Key Earthquakes occur when the big pieces of earth's crust, called plates, move a little. Mr Gneiss. 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! Y$Kr;V6[;Dq vg~cx:A[^jCssupwD endstream endobj 80 0 obj <> endobj 81 0 obj <>stream Figure 8. The Richter scale was created in the 1930s to assign a single number to quantify the energy released during earthquakes. Reading Strategy. See Answer. Based on your answers to the previous question, what is the lag time for locations that are ?t?s=Yt '_( endstream endobj 76 0 obj <>stream Upload a document. Wikipedia, The Free Encyclopedia. hWmo9+[+UH EkNB|6YiaVJ=cRh7{T1R,5LI1$K=s)XR&87@&$LTPLutlcyNuzjf--\?qaXZM&HM.Eg"HnTqSWqN0&~2kf0 Md|d&:zhe)7I? 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. Of the four Earthquakes Living Lab seismic areas, choose the "Chile" box, as shown in Figure 3. One seismogram indicates the distance to the epicenter. 0000008845 00000 n 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. 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. 0000004511 00000 n gov For online instructions and current fees click here. Earthquakes and Volcanoes. Hand out the worksheets to the groups and direct them to read through the instructions. Yw8SxGk}X3kfTfW& gk`41#'uf7"G\fsN4^8jC7[+%`qFLFKpFc S waves. DocHub v5.1.1 Released! 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.