activity 4 locating an earthquake epicenter answer key

Thus technology use varies from region to region and over time. Figure 2. Add to FlexBook Textbook. Focus (aka Hypocenter) is the location in the Earth where the earthquake starts. In this 1-to-10 logarithmic scale, each succeeding level representing 10 times as much energy as the last. Describe the process of triangulation to locate an epicenter. (Grades trailer <<0444DE89825047A1A483C62E98F50868>]>> startxref 0 %%EOF 114 0 obj <>stream How is the magnitude of an earthquake determined? 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. 74 Earthquake Activity: Locating the Epicenter and Time of Earthquake . Why might the triangulation method not always produce an exact point (other than your measurement errors)? 0000006011 00000 n Richter scale Method of earthquake measurement based on the amplitude of seismic . Earthquakes & Volcanoes Test Review Answers. Mr Gneiss. 0000007783 00000 n Dochub is the best editor for changing your documents online. All rights reserved. (, Have any of you ever experienced an earthquake or know anyone who has? Choose an answer and hit 'next'. 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. This section explains what earthquakes and faults are and what causes earthquakes. 1. to the lag time measured at this location? The farther a station is from the 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 0000004457 00000 n HtA1D41`s(GME$Ke*YdEOYf2-:r. Based on your answers to the previous question, what is the lag time for locations that are A minimum of three seismic stations is necessary to locate an epicenter. Have students click on the Earthquakes Living Lab hyperlink in the top left in the earthquakes section. 0000098546 00000 n long will it take, to the nearest 0. minutes, for the first P waves to travel from the epicenter to your station? moment magnitude scale: Similar to the Richter scale, but replacing its use starting in the 1970s for more accuracy in measuring big earthquakes (magnitudes > 3.5) from greater distances. 0000030968 00000 n If a quake is far from the seismograph, the P-waves arrive long before the S-waves. Thanks for your feedback! Learn from this informative and clear video.Brought you by award-winning Once each student has constructed his or her circle on the map, mark with an X, the epicenter of the earthquake. 0000001562 00000 n They use three seismographs in a process called triangulation to determine earthquake epicenters. If a quake is near the seismograph, the S-waves arrive shortly after the P-waves. %%EOF /g$=#!$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?? 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. The living lab presents earthquake information through a focus on four active seismic areas and historic earthquakes in those areas. 1,000 miles from the epicenter of an earthquake? How does distance from the epicenter affect the magnitude (height) of the seismograph reading? 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. different types of seismic waves. The American Geosciences Institute represents and serves the geoscience community by providing collaborative leadership and information to connect Earth, science, and people. 12), Analyze and interpret data about natural hazards using direct and indirect evidence atrial depolarization. When the tension becomes too great, the fault slips, causing an earthquake. 0000002658 00000 n Finding the Epicenter. hbb2b`b``a I @ endstream endobj 62 0 obj <>/Metadata 55 0 R/Pages 51 0 R/StructTreeRoot 57 0 R/Type/Catalog/ViewerPreferences<>>> endobj 63 0 obj <>/Font<>>>/Fields[]>> endobj 64 0 obj <>/Font<>/ProcSet[/PDF/Text]>>/Rotate 0/TrimBox[0.0 0.0 612.0 792.0]/Type/Page>> endobj 65 0 obj <> endobj 66 0 obj <> endobj 67 0 obj <> endobj 68 0 obj <>stream 0000010002 00000 n At least 3 earthquake recording stations are required to find the location of the earthquake epicenter. S wave: The second seismic wave of an earthquake. https://people.wou.edu/~taylors/gs104/lab5key.pdf Locating Earthquake Epicenters | CK-12 Foundation Apr 8, 2020 . It takes S waves 14. In order to determine the location of an earthquake epicenter, seismographsfrom at least three different places are needed for a particular event. HTAn This is determined by the P-and S-wave arrival times. directly above it on the surface of the earth is called the epicenter. The epicenter is the point directly above it at the surface of the Earth. Scientists use triangulation to find the epicenter of an earthquake. Free K-12 standards-aligned STEM curriculum for educators everywhere. Lab Exercise #2: Locating the Epicenter of an Earthquake In this lab exercise, you will locate the epicenter of an earthquake. Upload a document. 0000030504 00000 n When seismic data is collected from at least three different locations, it can be used to determine the epicenter by where it intersects. 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. 0000103591 00000 n Use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media. After this activity, students should be able to: Each TeachEngineering lesson or activity is correlated to one or more K-12 science, minutes? (i. Most of these earthquakes are small tremors that cant be felt by people, but occasionally an earthquake occurs on a large magnitude that causes millions of dollars in property damage and kills hundreds to thousands of people. Adjust the timing to the class period, remembering that you will need time to introduce the investigation, clean up afterwards, and re-set up for the next class (if you are working with more than one class). ya{I;W@DgMN2:UtbT=*+cY1.8Vm(u3Zt"J @9TAjJH@H_F3n7\Srdw~gAR#JQGj`ueS! One seismogram indicates the distance to the epicenter. a project of D2L (www.achievementstandards.org). Zip. Facility Name Busine Child ren Information Child Name C. Child Social Security Number Type of Case being filed - Check only one category. use slide 6 and answer key slide 7 how can i locate the earthquake epicenter michigan web the epicenter of the earthquake is somewhere on the edge of that circle do the (Source: USGS, Wikipedia). 0000003966 00000 n farther from the epicenter of an earthquake? Section A - Operator Information 1. 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"? 0000008845 00000 n 0000004060 00000 n Learn more How Can I Locate the Earthquake Epicenter? Tips: Make sure students are reading the S waves and not the P waves. Scientists and engineers around the globe gather data through observation and experimentation and use it to describe and understand how the world works. Do you agree with this alignment? Focus. 0000006538 00000 n Earthquakes and Volcanoes. One seismogram indicates the distance to the epicenter. There are two sets of data and maps to do this activity/ lab for than once. "`B(R6sj [CX7p+s =#;~ `'kA 0000078100 00000 n Therefore, the lag The western U.S. has more faults than the eastern U.S., and therefore the western U.S. has more earthquakes. 0 500 1000 1500 2000 2500 3000 Geologists use seismic waves to locate an earthquake's epicenter. Refer to the data table and use the difference in arrival times to determine the distance to the earthquake epicenter for Station 2. 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. 9 - 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. (Grades 9 - 12). 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. The Earthquakes Living Lab gives students the chance to track earthquakes across the planet and examine where, why and how they are occurring. 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. Point on Earth's surface directly above an earthquake's focus. approximate period of the surface waves in seconds? Do you agree with this alignment? 0000115324 00000 n Thanks for your feedback! Using 3 seismograms the students will be able to triangulate the epicenter of an earthquake. Subjects: Earth Sciences, General Science Grades: 5th - 8th Types: Activities, Laboratory 9 - 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. Sign, fax and printable from PC, iPad, tablet or mobile with pdfFiller Note-taking Worksheet. 12 Earthquake Location Lab Answer Key (PDF) - skislah.edu Web12-earthquake-location-lab-answer-key 1/1 Downloaded from skislah.edu.my on February 15, 2023 by guest 12 Earthquake Location Lab Answer Key Right here, we have countless ebook 12 Earthquake Location Lab Answer Key and collections to check out. 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. lag time. aqmd. Locating Epicenter Lab Worksheet (1).docx, Updating Patient Registration B at 08_10_2022 03_03 PM.pdf, You need to deploy an Azure environment that meets the company migration plan, Step 1 of 2 Program 1 A Simple Python Program Welcome with Two Messages Running, More women in academia report polarization assimilation in male skewed and male, A TACACS B RADIUS C Kerberos D SAML Correct Answer D QUESTION 321 A network, PTSD in Children and Adolescents - Copy - Copy - Copy - Copy.docx, Effects of Excitation and Prime Mover Control The excitation control helps to, D1 Fundamental security design principles.docx, Question 5 Correct Mark 100 out of 100 Remove flag Question 6 Correct Mark 100, Thomas Concurrence broadly attacked current NDD Federal gov should be allowed to, 769 Water at 15C is to be heated to 65C by passing it over a bundle of 4 m. Course Hero is not sponsored or endorsed by any college or university. Empirical evidence is required to differentiate between cause and correlation and make claims about specific causes and effects. 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. In a concluding class discussion, have groups share their ideas about engineering and one new thing they learned about earthquakes. Epicenter Location on Earth's surface directly above the focus of the earthquake 5. The longer the time between the arrival of the P-wave and S-wave, the farther away is the epicenter. Edit your locating an earthquake epicenter worksheet answers online. 61 0 obj <> endobj xref 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. xb``d``Id`a`Ab@_ :iWGi>|q` 0000002009 00000 n 11 minutes elapsed between the first P wave and the last measurable surface wave. Y$Kr;V6[;Dq vg~cx:A[^jCssupwD endstream endobj 80 0 obj <> endobj 81 0 obj <>stream *The NGSS logo is a registered trademark of WestEd. 0000004511 00000 n Have students turn in their answers for the Explain portion of the worksheet. Once three seismographs have been located, find the time interval between the arrival of the P-wave . What data is used to determine magnitude? Use the process of triangulation to locate an earthquake's epicenter. Find 23 millimeters on the right side of the chart and mark that point. (Figure 3):. to the lag time measured at this location? Another method of locating an earthquake is to use the P-wave arrival-time minus origin-time (P - O) interval instead of distance. Considered best for measuring small earthquakes (3.5 M or less). at that station. (Source: USGS, Wikipedia). 0000001408 00000 n within type by subtype, then by grade, etc. Also commonly termed the focus. Fill Locating The Epicenter Of An Earthquake Worksheet Answers, Edit online. hb```b````e``n`d@ A 'EF''oquE"ky#:}m;9JmkPt~=unFHy&|X:70 vILZ*|%6mD! 12), computer or other device with Internet access, journal or writing paper for each student. Sixty-seven people lost their lives, and property damage was estimated at $6 billion. What are those limits? Develop a solution to a technological problem that has the least negative environmental and social impact. The longer the time is between the P-and S-wave . Focal Depth. A. Seismic waves-waves generated by an earthquake, can move the ground forward and back- answers the question. Civil engineers, who design houses, apartment buildings, schools, skyscrapers, bridges, highways, tunnels, water treatment facilities, factories and other structures, may use this data to help them create safer structures that are less likely to sustain damage during earthquakes. Conclude the activity with a class discussion (and perhaps homework questions) to share ideas and answers, as described in the Assessment section. Looking at the nomogram, students click on each location data point to see where the three lines intersect to read the estimated magnitude. Collect any giveaways for the students, such as earthquake posters or plate tectonic fliers. Since the 1970s, the use of the Richter magnitude scale has largely been replaced in the scientific community by the moment magnitude scale (MMS). 92 0 obj <>/Filter/FlateDecode/ID[]/Index[83 25]/Info 82 0 R/Length 62/Prev 466624/Root 84 0 R/Size 108/Type/XRef/W[1 2 1]>>stream HTn {0,`K6}(J6]&Q^"!q57y_VQ9fp3/?Mc=KGsrrt:c\$Lh`4}>C>`qcSj0[YpZ_Su(322/N Z./$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 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. 3. What is the The process is called triangulation. Students first triangulate the location of an earthquake's epicenter, then calculate its magnitude. 0000001396 00000 n 17 Station St., Ste 3 Brookline, MA 02445. However, please review it for the specific setting, materials, students, and conventional safety precautions. Explains how to find an earthquake epicenter using at least three seismograph stations. Add to Library. Though the distance to the epicenter can be determined using a travel-time graph, the direction cannot be told. X!.43p2t!}SLx-3z.KN4X+H\+vk? 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Copyright USGS http://earthquake.usgs.gov/learn/kids/eqscience.php. Practice with Triangulation: Locating an earthquake epicenter. Locating Earthquake Epicenter Lab Answer Key buysms de. 9 - 0000002383 00000 n 0000030240 00000 n Once three seismographs have been located, find the time interval between the arrival of the P-wave and the arrival of the S-wave. Finding the Epicenter Determine the epicenter distance from three different seismographs. Some places are more prone to earthquakes than others. hbbd``b`$C`q9 X_$_g`bdxc`X Expert Answer. All the arcs should intersect at a common point - the epicenter. An earthquake is the violent movement of tectonic plates in the Earth's crust. Locating An Earthquake Epicenter Lab Answers Thank you for reading Locating An Earthquake Epicenter Lab Answers .