activity 4 locating an earthquake epicenter answer key

Thanks for your feedback! Lab Lesson 4 - Lab Lesson 4: Earthquakes and Seismology, 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. to the lag time measured at this location? P and Swaves are body waves and travelthrough the interior of the earth. 0000001143 00000 n What is the 0000002250 00000 n (i. Sixty-seven people lost their lives, and property damage was estimated at $6 billion. Students first triangulate the location of an earthquake's epicenter, then calculate its magnitude. If you draw a circle on a map around three different seismographs where the radius of each is the distance from that station to the earthquake, the intersection of those three circles is the epicenter. U.S. Geological Survey, U.S. Department of the Interior. travel 3,000 miles. In this activity, students use an online simulationVirtual Earthquakethat is accessible through the Earthquakes Living Lab interface, to locate the epicenter of an earthquake by making simple measurement on three seismograms, recordings of an earthquake's seismic waves detected by instruments (seismographs) far away from the earthquake. Describe the logarithmic nature of the earthquake magnitude scale. Review their answers to assess their base knowledge of the subject matter. 92 0 obj <>/Filter/FlateDecode/ID[]/Index[83 25]/Info 82 0 R/Length 62/Prev 466624/Root 84 0 R/Size 108/Type/XRef/W[1 2 1]>>stream Describe the process of triangulation to locate an epicenter. What are those limits? 3000 miles. Richter scale Method of earthquake measurement based on the amplitude of seismic . HtA1D41`s(GME$Ke*YdEOYf2-:r. Subject Areas: MS-ESS3-2. %PDF-1.5 % 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. (from left to right). The travel-time graph The answer is the San Andreas Fault. (Source: USGS, Wikipedia). If you complete all the problems, you should be able to: Identify P, S, and surface waves on a simple seismogram. 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. 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. View Notes - Locating_an_epicenter_activity from SCIENCE Earth Scie at Toms River High North. Students learn about factors that engineers take into consideration when designing buildings for earthquake-prone regions. The nations most famous fault is the San Andreas Fault, which runs along a north-south trend in southern California, and happens to run directly through Los Angeles. waves from a distant earthquake. While earthquake locations are normally done with a computer that can quickly determine the paths of seismic waves through the Earth to many seismic stations, 15 Introduction to Geology Chapter Worksheet . Reading Strategy. Accessed December 11, 2013. http://www.sciencecourseware.com/virtualearthquake/, USGS Earthquake Magnitude Policy (implemented on January 18, 2002). 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. The farther a station is from the Alignment agreement: 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. A single recording station can only calculate distance, but not direction; to cover all possibilities, a complete circle is drawn around that station. 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Click for facts and worksheets in PDF! 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. within type by subtype, then by grade, etc. Do you agree with this alignment? =Cv :~4yrXP 62{_,*Uq/O-oUNBr-$y~:G},#3e^CS6U*_zVGY7ZNUWk2f?? {%!,"{u5E&OOqA_"/uxn-kx+Vz*EQb)Q Was there an initial quake followed by smaller quakes? First locate and mark the three seismic stations on the world map provided below. 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. 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. : 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. Key Facts & 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. This section explains what earthquakes and faults are and what causes earthquakes. 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. 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. 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. Wikipedia, The Free Encyclopedia. You learned that seismologists determine the distance to the earthquake epicenter using the difference between S and P wave arrival times. Use the process of triangulation to locate an earthquake's epicenter. (Grades When seismic data is collected from at least three different locations, it can be used to determine the epicenter by where it intersects. Using 3 seismograms the students will be able to triangulate the epicenter of an earthquake. The Earthquakes Living Lab gives students the chance to track earthquakes across the planet and examine where, why and how they are occurring. 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. During an earthquake, seismic waves are sent all over the globe. It takes S waves 14. See Answer. Once three seismographs have been located, find the time interval between the arrival of the P-wave . Earthquake Worksheet Answers Earthquakes and Seismic Waves - carlisleschools.org Triangulation to Locate an Earthquake By Earthquake Hazards Original Thumbnail Medium Detailed Description Triangulation can be used to locate an earthquake. 0000055643 00000 n (, 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. 1) Identify the general term for waves released from an earthquake. Since the 1970s, the use of the Richter magnitude scale has largely been replaced in the scientific community by the moment magnitude scale (MMS). earthquake though). P wave. 0000001533 00000 n 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. As you read and complete the activity, take notes so you can complete the. 0000078169 00000 n 0000098546 00000 n 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. So the difference in the P- and S-wave arrival times determines the distance between the epicenter and a seismometer. We have answers to the most popular questions from our customers. The magnitude is the logarithm of the amplitude of the ground wave. The vertical lines, spaced one, minute apart, represent the passage of time, (from left to right). Earthquakes and Seismic Waves Key Concepts . To complete the activity, some prior . This is determined by the P-and S-wave arrival times. For lower grades, just introduce the concepts of triangulation and the magnitude scale; a thorough understanding of P and S waves is not vital. Focus (aka Hypocenter) is the location in the Earth where the earthquake starts. 0000002840 00000 n Fill Locating The Epicenter Of An Earthquake Worksheet Answers, Edit online. The spot where those three circles intersect is the epicenter (Figure 13.12). distance from transducer to the focal point. (Figure 3):. Great exercise for Regents Earth Science. Hands-on Activity Earthquakes Living Lab: Finding Epicenters 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. /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?? For example, For example, the western United States has earthquakes more frequently and on a larger scale than the eastern part of the country. 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. Epicenter Location on Earth's surface directly above the focus of the earthquake 5. Pwaves have the greatest velocity and reach the, seismic station first. 0000004224 00000 n Have students click on the Earthquakes Living Lab hyperlink in the top left in the earthquakes section. Accessed December 11, 2013. http://en.wikipedia.org/wiki/Moment_magnitude_scale, Novak, Gary. The earthquake occurred somewhere along that circle. Success is figuring out that the estimated magnitude is 5.9. As you may know, people have look numerous times for . 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. Therefore, the lag Moment magnitude scale. 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. The distance to the earthquake epicenter is then determined using the "Earthquake P-Wave and S-Wave Travel Time" graph. The real-world earthquake data is viewable via a graphical interface using a scaling map. (Grades 9 - 12). 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. Earthquakes can also cause tsunamis, which are very large waves that can damage coastlines and put coastal residents in danger. Virtual Earthquake (tutorial/simulation) 1996. Use mathematical representations of phenomena or design solutions to describe and/or support claims and/or explanations. All rights reserved. 12), computer or other device with Internet access, journal or writing paper for each student. You can also download it, export it or print it out. Ch Person/Attorney Filing: - Superior Court - Maricopa County - superiorcourt maricopa. 2. These natural disasters may be mitigated, however, by insightful and creative engineering. Of the four Earthquakes Living Lab seismic areas, choose the "Chile" box, as shown in Figure 3. Do you think we will someday be able to prevent earthquakes? Add to FlexBook Textbook. distance = travel time for S waves Practice with Triangulation: Locating an earthquake epicenter. Through the online Earthquakes Living Lab, student pairs explore various types of seismic waves and the differences between shear waves and compressional 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 Divide the class into student pairs, and have them assemble at their computers with journals/paper and writing instruments. located 1,000 miles from the Locating_an_epicenter_activity-MB.pdf - Activity 4: Locating an