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activity 4 locating an earthquake epicenter answer key
activity 4 locating an earthquake epicenter answer key
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. Run through the investigation yourself and record the data, just to see how long it takes. Short for "primary wave" or "pressure wave." Nov 2, 2020 Triangulation is used to determine the location of an earthquake. 11 minutes elapsed between the first P wave and the last measurable surface wave. (Grades
What about P waves? HTn0"H@w=s(vxk8OM1px-{$_!o5|CS7RPr#V(0CUa%ZkuT9t};D
Jj=.9,z!#@n5YCu>R88tfFRX=iRK MS-ESS3-2. An earthquake is the violent movement of tectonic plates in the Earth's crust. The longer the time between the arrival of the P-wave and S-wave, the farther away is the epicenter. 0000033429 00000 n
Then from the same recordings they determine the earthquake's magnitude, an estimate of the amount of energy released during the earthquake. (Listen to student ideas.) 0000009174 00000 n
Question: ACTIVITY 2B Locating an Earthquake Figure 5 shows seismograms for the same earthquake recorded at three locations-New York; Nome, Alaska; and Mexico City. Once three seismographs have been located, find the time interval between the arrival of the P-wave and the arrival of the S-wave. When seismic data is collected from at least three different locations, it can be used to determine the epicenter by where it intersects. HTn {0,`K6}(J6]&Q^"!q57y_VQ9fp3/?Mc=KGsrrt:c\$Lh`4}>C>`qcSj0[YpZ_Su(322/N
Z./$E )H %C[5ph[BUyGh7|!XPQiDjJ(|BNvylk+g;9G(#Aby>Jcf`XmnwtDD+;Z^I&Sb-4!7oi` L7
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The three seismograms in this activity are unfi ltered station records from a single event that occurred on August 1, 1999. Specifically, seismographs make recordings (seismograms) of the seismic waves generated from earthquakes, providing engineers and other researchers with data that they use to make predictions about future earthquakes. m>r/Q[6 Upload a document. 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! These distances are determined using a travel-time curve, which is a graph of Pand S-wave arrival times (see Figure 13.11). After reading about earthquakes, open a new window to an Earthquake Simulator at, Follow the simulation instructions. 87 0 obj
<>
endobj
xref
87 28
0000000016 00000 n
Great-circle arcs are drawn on the globe using the distance of the earthquake to the station as a radius. 0000006011 00000 n
(, Have any of you ever experienced an earthquake or know anyone who has? Accessed December 11, 2013. http://earthquake.usgs.gov/aboutus/docs/020204mag_policy.php. (5 minutes) Discuss how gathering information on epicenters can be applied. Locating the Epicenter of an Earthquake - SE Asia a foldable activity, slide presentation to guide reading, and an answer key! 0000001408 00000 n
Figure 2. Answer Key: Lab 5 Earthquakes - Find People EARTHQUAKES: Epicenter Determination and Seismic Waves .
As the drum rotated, t, pen recorded the arrival of P, S, and surface, between arrival of P and S waves is called, epicenter, the longer the lag time measured, velocity, amplitude, and frequency of the. 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 . 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. Choose an answer and hit 'next'. (Figure 3):. As the drum rotated, the Section 8.1 What Is an Earthquake? Seismograms The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. In this 1-to-10 logarithmic scale, each succeeding level representing 10 times as much energy as the last. Must engineers be content with mitigating disasters, instead of preventing them? 0000030240 00000 n
After this activity, students should be able to: Each TeachEngineering lesson or activity is correlated to one or more K-12 science,
0000055643 00000 n
Student exploration Graphing Skills SE Key Gizmos Explore Learning. 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. 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. View Notes - Locating_an_epicenter_activity from SCIENCE Earth Scie at Toms River High North. How does the Mad Scientist. In a concluding class discussion, have groups share their ideas about engineering and one new thing they learned about earthquakes. Details. 0000010002 00000 n
What data is used to determine magnitude? Thanks for your feedback! Finding the epicenter worksheet answer key. 0000078100 00000 n
%PDF-1.4
%
Refer to the data table and use the difference in arrival times to determine the distance to the earthquake epicenter for Station 2. Moment magnitude scale. velocity, amplitude, and frequency of the What was the lag time (in minutes) at this location? The distance to the earthquake epicenter is then determined using the "Earthquake P-Wave and S-Wave Travel Time" graph. and S waves depends on the distance from the epicenter of the answer the following question. Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org. Video Guide / Worksheets and Quizzes for Quizzes and Answer Sheet __ 2. Figure 8. directly above it on the surface of the earth is called the epicenter. activity illustrates how the epicenter of an earthquake is found. Fill Locating The Epicenter Of An Earthquake Worksheet Answers, Edit online. Practicing this technique, the students work several problems on a map of the US. Earthquakes Living Lab: Finding Epicenters & Measuring Magnitudes. hb```b````e``n`d@ A
'EF''oquE"ky#:}m;9JmkPt~=unFHy&|X:70
vILZ*|%6mD! Use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media. by. 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. 1) Identify the general term for waves released from an earthquake. 0000002658 00000 n
0000001533 00000 n
Review their answers to assess their base knowledge of the subject matter. One seismogram indicates the distance to the epicenter. Even though the scale formulae are different, MMS retains the familiar continuum of magnitude values defined by the older scale. locate and label the epicenter of the earthquake on this map. To abbreviate, use the symbol M (a capital M, plain text, no sub/superscripts) expressed to the nearest 0.1. Note the differences in 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. So next, students compute the magnitude of this same earthquake by looking at the three simplified seismograms again, but this time selecting each's maximum S wave amplitude (height). 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. Add to Library. 500p;333aXb3
\a.1. The spot where those three circles intersect is the epicenter (Figure 13.12). This is determined by the P-and S-wave arrival times. What is an earthquake? What are those limits? They make a model of a seismographa measuring device that records an earthquake on a seismogram. 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. 0000004457 00000 n
Do you agree with this alignment? HTn0MmcHCB If a quake is far from the seismograph, the P-waves arrive long before the S-waves. 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. 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. Send activity 4 locating an earthquake epicenter worksheet answers via email, link, or fax. 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. 17 Station St., Ste 3 Brookline, MA 02445. 12), Seek, evaluate, and use a variety of specialized resources available from libraries, the Internet, and the community to find scientific information on Earth's history
Alignment agreement:
0000103591 00000 n
All rights reserved. Shear wave from earthquake, moving slower than primary waves, through solid material only. minute apart, represent the passage of time cCV&0Lw1~c\4QA!{q:
N3\`Lccgb,x/if`WH3(\'q)Da'@ |
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Do limits exist on what science can predict? It is called triangulation because a triangle has three sides, and it takes three seismographs to locate an earthquake. 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. U.S. Geological Survey, U.S. Department of the Interior. (Source: USGS). Earthquakes occur along faults, which are cracks in the Earths crust that build tension. 0000006984 00000 n
0000005149 00000 n
Considered best for measuring small earthquakes (3.5 M or less). If you can't find an answer to your question, please contact us. distance = travel time for S waves 0000001396 00000 n
During an earthquake, seismic waves are sent all over the globe. 0000002383 00000 n
0000001746 00000 n
Section A - Operator Information 1. 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. 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. It is slower than the same earthquake's P wave and cannot travel through liquids. 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. located 1,000 miles from the The USGS and its partners monitor and report earthquakes, assess earthquake impacts and hazards, and . How many minutes elapsed between the arrival of the first P wave and the last measurable How might they use this information? The spot where those three circles intersect is the epicenter (Figure 13.12). Assess their understanding based on the thoroughness of their answers. 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. This opens a new window to Michigan Techs UPSeis informational site about earthquakes and seismology. 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. to the lag time measured at this location? What data is used to determine magnitude? The vertical lines, spaced one, minute apart, represent the passage of time, (from left to right). Q(_?!6YV3B"\'9:4gTp*7^/P.X!skfkJ)1nG#a\{UD+iWM+ rQR]9SFTUPlM#"c:;tnsQPlu]Uyv?Ge}W;8cMA/x}'5clES~+}S+N7}wQ:/BkmI^" 5oqaBC[TRjq4.e}F:SQg{=u\xcg~EaZKReoC?oahJ` 'w
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Use Figure 4.5 and the travel-time graph in Figure 4.4 to determine the distance between each station and THREE SEISMOGRAMS the epicenter. A minimum of three seismic stations is necessary to locate an epicenter. Lab Exercise #2: Locating the Epicenter of an Earthquake In this lab exercise, you will locate the epicenter of an earthquake. 4. 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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activity 4 locating an earthquake epicenter answer key
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. Run through the investigation yourself and record the data, just to see how long it takes. Short for "primary wave" or "pressure wave." Nov 2, 2020 Triangulation is used to determine the location of an earthquake. 11 minutes elapsed between the first P wave and the last measurable surface wave. (Grades
What about P waves? HTn0"H@w=s(vxk8OM1px-{$_!o5|CS7RPr#V(0CUa%ZkuT9t};D
Jj=.9,z!#@n5YCu>R88tfFRX=iRK MS-ESS3-2. An earthquake is the violent movement of tectonic plates in the Earth's crust. The longer the time between the arrival of the P-wave and S-wave, the farther away is the epicenter. 0000033429 00000 n
Then from the same recordings they determine the earthquake's magnitude, an estimate of the amount of energy released during the earthquake. (Listen to student ideas.) 0000009174 00000 n
Question: ACTIVITY 2B Locating an Earthquake Figure 5 shows seismograms for the same earthquake recorded at three locations-New York; Nome, Alaska; and Mexico City. Once three seismographs have been located, find the time interval between the arrival of the P-wave and the arrival of the S-wave. When seismic data is collected from at least three different locations, it can be used to determine the epicenter by where it intersects. HTn {0,`K6}(J6]&Q^"!q57y_VQ9fp3/?Mc=KGsrrt:c\$Lh`4}>C>`qcSj0[YpZ_Su(322/N
Z./$E )H %C[5ph[BUyGh7|!XPQiDjJ(|BNvylk+g;9G(#Aby>Jcf`XmnwtDD+;Z^I&Sb-4!7oi` L7
endstream
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The three seismograms in this activity are unfi ltered station records from a single event that occurred on August 1, 1999. Specifically, seismographs make recordings (seismograms) of the seismic waves generated from earthquakes, providing engineers and other researchers with data that they use to make predictions about future earthquakes. m>r/Q[6 Upload a document. 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! These distances are determined using a travel-time curve, which is a graph of Pand S-wave arrival times (see Figure 13.11). After reading about earthquakes, open a new window to an Earthquake Simulator at, Follow the simulation instructions. 87 0 obj
<>
endobj
xref
87 28
0000000016 00000 n
Great-circle arcs are drawn on the globe using the distance of the earthquake to the station as a radius. 0000006011 00000 n
(, Have any of you ever experienced an earthquake or know anyone who has? Accessed December 11, 2013. http://earthquake.usgs.gov/aboutus/docs/020204mag_policy.php. (5 minutes) Discuss how gathering information on epicenters can be applied. Locating the Epicenter of an Earthquake - SE Asia a foldable activity, slide presentation to guide reading, and an answer key! 0000001408 00000 n
Figure 2. Answer Key: Lab 5 Earthquakes - Find People EARTHQUAKES: Epicenter Determination and Seismic Waves .
As the drum rotated, t, pen recorded the arrival of P, S, and surface, between arrival of P and S waves is called, epicenter, the longer the lag time measured, velocity, amplitude, and frequency of the. 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 . 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. Choose an answer and hit 'next'. (Figure 3):. As the drum rotated, the Section 8.1 What Is an Earthquake? Seismograms The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. In this 1-to-10 logarithmic scale, each succeeding level representing 10 times as much energy as the last. Must engineers be content with mitigating disasters, instead of preventing them? 0000030240 00000 n
After this activity, students should be able to: Each TeachEngineering lesson or activity is correlated to one or more K-12 science,
0000055643 00000 n
Student exploration Graphing Skills SE Key Gizmos Explore Learning. 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. 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. View Notes - Locating_an_epicenter_activity from SCIENCE Earth Scie at Toms River High North. How does the Mad Scientist. In a concluding class discussion, have groups share their ideas about engineering and one new thing they learned about earthquakes. Details. 0000010002 00000 n
What data is used to determine magnitude? Thanks for your feedback! Finding the epicenter worksheet answer key. 0000078100 00000 n
%PDF-1.4
%
Refer to the data table and use the difference in arrival times to determine the distance to the earthquake epicenter for Station 2. Moment magnitude scale. velocity, amplitude, and frequency of the What was the lag time (in minutes) at this location? The distance to the earthquake epicenter is then determined using the "Earthquake P-Wave and S-Wave Travel Time" graph. and S waves depends on the distance from the epicenter of the answer the following question. Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org. Video Guide / Worksheets and Quizzes for Quizzes and Answer Sheet __ 2. Figure 8. directly above it on the surface of the earth is called the epicenter. activity illustrates how the epicenter of an earthquake is found. Fill Locating The Epicenter Of An Earthquake Worksheet Answers, Edit online. Practicing this technique, the students work several problems on a map of the US. Earthquakes Living Lab: Finding Epicenters & Measuring Magnitudes. hb```b````e``n`d@ A
'EF''oquE"ky#:}m;9JmkPt~=unFHy&|X:70
vILZ*|%6mD! Use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media. by. 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. 1) Identify the general term for waves released from an earthquake. 0000002658 00000 n
0000001533 00000 n
Review their answers to assess their base knowledge of the subject matter. One seismogram indicates the distance to the epicenter. Even though the scale formulae are different, MMS retains the familiar continuum of magnitude values defined by the older scale. locate and label the epicenter of the earthquake on this map. To abbreviate, use the symbol M (a capital M, plain text, no sub/superscripts) expressed to the nearest 0.1. Note the differences in 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. So next, students compute the magnitude of this same earthquake by looking at the three simplified seismograms again, but this time selecting each's maximum S wave amplitude (height). 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. Add to Library. 500p;333aXb3
\a.1. The spot where those three circles intersect is the epicenter (Figure 13.12). This is determined by the P-and S-wave arrival times. What is an earthquake? What are those limits? They make a model of a seismographa measuring device that records an earthquake on a seismogram. 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. 0000004457 00000 n
Do you agree with this alignment? HTn0MmcHCB If a quake is far from the seismograph, the P-waves arrive long before the S-waves. 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. 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. Send activity 4 locating an earthquake epicenter worksheet answers via email, link, or fax. 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. 17 Station St., Ste 3 Brookline, MA 02445. 12), Seek, evaluate, and use a variety of specialized resources available from libraries, the Internet, and the community to find scientific information on Earth's history
Alignment agreement:
0000103591 00000 n
All rights reserved. Shear wave from earthquake, moving slower than primary waves, through solid material only. minute apart, represent the passage of time cCV&0Lw1~c\4QA!{q:
N3\`Lccgb,x/if`WH3(\'q)Da'@ |
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Do limits exist on what science can predict? It is called triangulation because a triangle has three sides, and it takes three seismographs to locate an earthquake. 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. U.S. Geological Survey, U.S. Department of the Interior. (Source: USGS). Earthquakes occur along faults, which are cracks in the Earths crust that build tension. 0000006984 00000 n
0000005149 00000 n
Considered best for measuring small earthquakes (3.5 M or less). If you can't find an answer to your question, please contact us. distance = travel time for S waves 0000001396 00000 n
During an earthquake, seismic waves are sent all over the globe. 0000002383 00000 n
0000001746 00000 n
Section A - Operator Information 1. 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. 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. It is slower than the same earthquake's P wave and cannot travel through liquids. 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. located 1,000 miles from the The USGS and its partners monitor and report earthquakes, assess earthquake impacts and hazards, and . How many minutes elapsed between the arrival of the first P wave and the last measurable How might they use this information? The spot where those three circles intersect is the epicenter (Figure 13.12). Assess their understanding based on the thoroughness of their answers. 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. This opens a new window to Michigan Techs UPSeis informational site about earthquakes and seismology. 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. to the lag time measured at this location? What data is used to determine magnitude? The vertical lines, spaced one, minute apart, represent the passage of time, (from left to right). Q(_?!6YV3B"\'9:4gTp*7^/P.X!skfkJ)1nG#a\{UD+iWM+ rQR]9SFTUPlM#"c:;tnsQPlu]Uyv?Ge}W;8cMA/x}'5clES~+}S+N7}wQ:/BkmI^" 5oqaBC[TRjq4.e}F:SQg{=u\xcg~EaZKReoC?oahJ` 'w
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Use Figure 4.5 and the travel-time graph in Figure 4.4 to determine the distance between each station and THREE SEISMOGRAMS the epicenter. A minimum of three seismic stations is necessary to locate an epicenter. Lab Exercise #2: Locating the Epicenter of an Earthquake In this lab exercise, you will locate the epicenter of an earthquake. 4. Book: Laboratory Manual for Introductory Geology (Deline, Harris & Tefend), { "13.01:_Introduction" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.
