13. You will analyze the records and locate the earthquake using a method known DocHub v5.1.1 Released! important in helping seismologists determine the epicenter of the earthquake. 1. The vertical lines, spaced one Earthquakes and Seismic Waves Key Concepts . The, amount of time that passes between the Pwave arrival and the Swave arrival is. Finding the Epicenter. Have students click on the Earthquakes Living Lab hyperlink in the top left in the earthquakes section. 0000003991 00000 n
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. 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"? Alignment agreement:
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The epicenter of an earthquake can be found using the difference between the arrival of the Primary and Secondary waves. Multiply the difference by 8.4 to estimate the distance, in kilometers, from the seismograph station to the epicenter. Activity: Locating an Earthquake Epicenter Lecture 3 Damage from the earthquake was widespread, but the actual location of the earthquake (the epicenter) Subjects: Earth Sciences, General Science Grades: 5th - 8th Types: Activities, Laboratory 0000001862 00000 n
The vertical lines, spaced one, minute apart, represent the passage of time, (from left to right). 0000098546 00000 n
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Use the process of triangulation to locate an earthquake's epicenter. 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. 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. For this activity, select the "Chile" box. epicenter: A point on the Earth's surface that is directly above the place where the underground forces of an earthquake originate. Epicenter. Triangulation is required to determine exactly where it happened. endstream
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The Earthquakes Living Lab gives students the chance to track earthquakes across the planet and examine where, why and how they are occurring. This is determined by the P-and S-wave arrival times. 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 period of P waves is shorter, than the period of surface waves. A little under 30 seconds, maybe around 26 seconds. The point of origin of an earthquake is called its focus and the point on the Earth's surface directly above the focus is the epicenter. 0000001533 00000 n
Thanks for your feedback! Using historical seismographs, engineers forecast the strength or magnitude of earthquakes and make predictions and determine building codes and safety protocols. 0000001562 00000 n
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. 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. 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." 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. 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. 0000106240 00000 n
After reading about earthquakes, open a new window to an Earthquake Simulator at, Follow the simulation instructions. Thanks for your feedback! earthquake though). P and S arrivals, you can now locate an earthquake your answers below. 3. epicenter - the point on Earth's surface directly above the focus, or origin, of an earthquake. 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. 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. All the arcs should intersect at a common point - the epicenter. Dochub is the best editor for changing your documents online. HS]o01j6R0iMm4U=wL8]BE< time for any point that is 3,000 miles 0000001893 00000 n
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) . Do limits exist on what science can predict? Another method of locating an earthquake is to use the P-wave arrival-time minus origin-time (P - O) interval instead of distance. Answer Key: Lab 5 Earthquakes - Find People EARTHQUAKES: Epicenter Determination and Seismic Waves . 0000000016 00000 n
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to the lag time measured at this location? The three seismograms in this activity are unfi ltered station records from a single event that occurred on August 1, 1999. 0000003254 00000 n
The longer the time is between the P-and S-wave . How do we determine the epicenter of an earthquake? Locating an Epicenter through Triangulation of Seismic Data- Remote/Hybrid/Live. Sign, fax and printable from PC, iPad, tablet or mobile with pdfFiller Note-taking Worksheet. Then do the same for the S-wave. Make changes to the sample. How is the magnitude of an earthquake determined? travel 3,000 miles. S wave: The second seismic wave of an earthquake. HTAn What data is used to determine magnitude? 0000008088 00000 n
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Must engineers be content with mitigating disasters, instead of preventing them? Looking at the nomogram, students click on each location data point to see where the three lines intersect to read the estimated magnitude. Please answer the following questions using the earthquake video - shake, shake, shake. Seismograms P wave. The seismometers are shown as green dots. Tracings made at three separate seismic stations are needed to locate an earthquake epicenter. Activity4:LocatinganEarthquakeEpicenter Objectives:Ifyoucompletealltheproblems,youshouldbeableto: Identif Some places are more prone to earthquakes than others. by. These natural disasters may be mitigated, however, by insightful and creative engineering. Several thousand seismographs exist at locations around the planet, continuously measuring abnormalities in the Earth's movement. One seismogram indicates the distance to the epicenter. Finding the epicenter worksheet answer key. 0000009174 00000 n
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? Students learn about factors that engineers take into consideration when designing buildings for earthquake-prone regions. One seismogram indicates the distance to the epicenter. Through the online Earthquakes Living Lab, student pairs explore various types of seismic waves and the differences between shear waves and compressional waves. 0000005544 00000 n
Share with Classes. 74 Earthquake Activity: Locating the Epicenter and Time of Earthquake . Figure 1 is a simplified example of a Shear wave from earthquake, moving slower than primary waves, through solid material only. ya{I;W@DgMN2:UtbT=*+cY1.8Vm(u3Zt"J
@9TAjJH@H_F3n7\Srdw~gAR#JQGj`ueS! Quick Tips. consider a seismograph stationed 3, For example, Scientists and engineers around the globe gather data through observation and experimentation and use it to describe and understand how the world works. Answer Key: Lab 5 Earthquakes - Find People, Locating Earthquake Epicenters | CK-12 Foundation, Earthquake Station - Regents Earth Science, Locating Earthquakes Teaching Resources - TPT, Locating An Epicenter Teaching Resources - TPT, How To Find The Epicenter Of An Earthquake - YouTube, Locating The Epicenter Of An Earthquake Worksheet, Locating An Earthquake Epicenter Worksheet Answers, glencoe responsible driving chapter 2 answers, pnp neuro psychiatric exam sample questions, quais tipos de drogas sao detectadas no exame toxicologico, centro de apoio diagnostico resultado de exames, locating earthquake epicenter worksheet answer key, exame pcr covid para viagem internacional, quantos dias pra sair o resultado do exame de covid, du ma political science entrance exam syllabus 2023, earth and life science grade 11 module 4 genetic engineering answer key, go math grade 5 chapter 11 lesson 11.9 answer key, civil service examination in the philippines. Place a ruler (or straight edge) on the chart between the points you marked for the distance to the epicenter and the amplitude. The lag time for any 12), Evaluate ways that technology can impact individuals, society, and the environment. In Figure 13.9, there is an example seismogram from a station that includes a minor earthquake. View Notes - Locating_an_epicenter_activity from SCIENCE Earth Scie at Toms River High North. 0
Explains how to find an earthquake epicenter using at least three seismograph stations. Since the 1970s, the use of the Richter magnitude scale has largely been replaced in the scientific community by the moment magnitude scale (MMS). 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. Using the real-world data in the living lab enables students and teachers to practice analyzing data to solve problems and answer questions, in much the same way that scientists and engineers do every day. 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. (Source: USGS, Wikipedia). 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. long will it take, to the nearest 0. minutes, for the first P waves to travel from the epicenter to your station? Run through the investigation yourself and record the data, just to see how long it takes. earthquake. Locating Earthquake Epicenter Lab Answer Key buysms de. Ch Person/Attorney Filing: - Superior Court - Maricopa County - superiorcourt maricopa. Free K-12 standards-aligned STEM curriculum for educators everywhere. S waves. !5(~q* Earthquakes & Volcanoes Test Review Answers. Facility Name Busine Child ren Information Child Name C. Child Social Security Number Type of Case being filed - Check only one category. Conclude the activity with a class discussion (and perhaps homework questions) to share ideas and answers, as described in the Assessment section. What is an earthquake? 0000001675 00000 n
The western U.S. has more faults than the eastern U.S., and therefore the western U.S. has more earthquakes. epicenter, the longer the lag time measured Student exploration Graphing Skills SE Key Gizmos Explore Learning. After this activity, students should be able to: Each TeachEngineering lesson or activity is correlated to one or more K-12 science,
12), Analyze and interpret data about natural hazards using direct and indirect evidence
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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. '
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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. 0000006538 00000 n
This opens a new window to Michigan Techs UPSeis informational site about earthquakes and seismology. 0000001396 00000 n
Ask students what fault they think caused this earthquake. Success is figuring out that the estimated magnitude is 5.9. n{6c&6NK*U;=9i%nF Wikipedia, The Free Encyclopedia. As discussed earlier in this lesson, this method of determining the epicenter of an . Figure 8. Scientists use triangulation to find the epicenter of an earthquake. Book: Laboratory Manual for Introductory Geology (Deline, Harris & Tefend), { "13.01:_Introduction" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.
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