https://people.wou.edu/~taylors/gs104/lab5key.pdf Locating Earthquake Epicenters | CK-12 Foundation Apr 8, 2020 . 0000004224 00000 n approximate period of the surface waves in seconds? 0000009174 00000 n to the lag time measured at this location? 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. Answer the following questions in the spaces provided. How many minutes elapsed between the arrival of the first P wave and the last measurable Of the four Earthquakes Living Lab seismic areas, choose the "Chile" box, as shown in Figure 3. Figure 2 is a seismic wave travel-time The process is called triangulation. by. 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. 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. Therefore, the lag Point on Earth's surface directly above an earthquake's focus. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. farther from the epicenter of an earthquake? PDF. S waves. Identify P, S, and surface waves on seismograms, Measure amplitude and lag time on seismograms, Use triangulation to accurately locate the epicenter of an earthquake, Accurately report the latitude and longitude of the epicenter, Sea Floor Lab Help with Problem 2 - Tagged, Metamorphic Rocks Lab Instructions - Tagged, Lab exam 2 - Study guide for the second exam regarding all the labs and material covered, Redaccion de textos II Marco n 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. Please answer the following questions using the earthquake video shake, shake, shake. The point where your ruler crosses the middle line on the chart marks the magnitude (strength) of the earthquake. This worksheet focuses on using the p and s graph to find different variables. What was the lag time (in minutes) at this location? Short for "secondary wave" or "shear wave." graph. While no one can predict earthquakes, knowing the intensities, frequencies and locations of past earthquakes and fault planes helps us to better anticipate the locations and forces to expect, so we can do our best to prepare our communities and infrastructure to withstand them safely. (i. To abbreviate, use the symbol M (a capital M, plain text, no sub/superscripts) expressed to the nearest 0.1. Locating the Epicenter of an Earthquake - SE Asia a foldable activity, slide presentation to guide reading, and an answer key! 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The vertical lines, spaced one, minute apart, represent the passage of time, (from left to right). American Geosciences Institute. 0000078169 00000 n Overhead transparency of each of the handouts, Overhead projector (contact classroom teacher about this) and screen, Optional: overhead transparency or PowerPoint of, What do you know about the causes and impacts of Earthquakes? In Figure 13.9, there is an example seismogram from a station that includes a minor earthquake. The wavelength and frequency of a wave are related to one another by the speed of travel of the wave, which depends on the type of wave and the medium through which it is passing. Once three seismographs have been located, find the time interval between the arrival of the P-wave and the arrival of the S-wave. 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. The magnitude is the logarithm of the amplitude of the ground wave. Lab Exercise #2: Locating the Epicenter of an Earthquake In this lab exercise, you will locate the epicenter of an earthquake. trailer <<0444DE89825047A1A483C62E98F50868>]>> startxref 0 %%EOF 114 0 obj <>stream The travel-time graph It's a logarithmic scale from 1 to 10 with each succeeding level representing 10 times as much energy as the last. HtA1D41`s(GME$Ke*YdEOYf2-:r. Students learn about the types of seismic waves produced by earthquakes and how they move through the Earth. Notify the classroom teacher of technology needs (overhead projector). locate and label the epicenter of the earthquake on this map. 0000008845 00000 n Use this information to complete the following. Success is figuring out that the epicenter is just off the coast of Chile, where the three circles intersect. For example, the western United States has earthquakes more frequently and on a larger scale than the eastern part of the country. Subjects: Earth Sciences, General Science Grades: 5th - 8th Types: Activities, Laboratory The farther a station is from the Alignment agreement: long will it take, to the nearest 0. minutes, for the first P waves to travel from the epicenter to your station? 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 . Students first triangulate the location of an earthquake's epicenter, then calculate its magnitude. 0000001408 00000 n distance from transducer to the focal point. Use Figure 5 and the travel-time graph in Figure 4 to determine . Make changes to the sample. 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) . 0000030240 00000 n 107 0 obj <>stream 87 0 obj <> endobj xref 87 28 0000000016 00000 n 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. velocity, amplitude, and frequency of the Finding the Epicenter Determine the epicenter distance from three different seismographs. 0000001143 00000 n 0000033429 00000 n All rights reserved. n{6c&6NK*U;=9i%nF Learn more How Can I Locate the Earthquake 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. located 1,000 miles from the 0000103591 00000 n Many updates and improvements! (Source: USGS, Wikipedia). 0000002094 00000 n and S waves depends on the distance from the epicenter of the answer the following question. 1,000 miles from the epicenter of an earthquake? For example, Empirical evidence is required to differentiate between cause and correlation and make claims about specific causes and effects. If you complete all the problems, you should be able to: Identify P, S, and surface waves on a simple seismogram. Looking at the nomogram, students click on each location data point to see where the three lines intersect to read the estimated magnitude. 0000098546 00000 n earthquake - shaking and vibration of Earth's surface. Since the 1970s, the use of the Richter magnitude scale has largely been replaced in the scientific community by the moment magnitude scale (MMS). 0000003966 00000 n 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. [*aiLG?+J\QI86~}ooRrr!pm}dk@dBbZPMZlC4C\9^ SM.R\!H+$|+DUzt^w{" %&{KXjT'9yzT^UFe:+f(`PU_9%EW@\)?i qp!\G Z endstream endobj 75 0 obj <>stream The magnitude determination is based on seismic data. 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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. Locating_an_epicenter_activity - Activity4 - Course Hero Finding the epicenter worksheet answer key. Accessed December 11, 2013. http://earthquake.usgs.gov/aboutus/docs/020204mag_policy.php. 13 4 locating an earthquake epicenter geosciences libretexts . PDF ActivityEarthquake Location* - Cascadia Earthscope Earthquake and If the lag time were measured at a location closer to the epicenter, The period of a wave is the time between two adj, How does the period of the P waves compare to t. Use data from seismograms to locate the epicenters of earthquakes. Moment magnitude scale. A single recording station can only calculate distance, but not direction; to cover all possibilities, a complete circle is drawn around that station. A little under 30 seconds, maybe around 26 seconds. One seismogram indicates the distance to the epicenter. 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. 0000006538 00000 n Students learn about factors that engineers take into consideration when designing buildings for earthquake-prone regions. Next, have student groups answer the eight questions in the. Earthquakes Living Lab: Finding Epicenters & Measuring Magnitudes. 0 Facility Name Busine Child ren Information Child Name C. Child Social Security Number Type of Case being filed - Check only one category. 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. Use the graph to answer the questions that follow. minutes = 6 minutes. 2. 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. The USGS now uses the MMS to estimate magnitudes for all modern large earthquakes. Then from the same recordings they determine the earthquake's magnitude, an estimate of the amount of energy released during the earthquake. 0000001746 00000 n !D,X2:azTG)kPT~Mj 4>d w@O'. Graphs, charts, and images can be used to identify patterns in data. After reading about earthquakes, open a new window to an Earthquake Simulator at, Follow the simulation instructions. Earthquakes occur along faults, which are cracks in the Earths crust that build tension. 0000001533 00000 n The three seismograms in this activity are unfi ltered station records from a single event that occurred on August 1, 1999. All the arcs should intersect at a common point - the epicenter. How does the Mad Scientist. xb``d``Id`a`Ab@_ :iWGi>|q` 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. Encourage them to explore all of the Earthquakes Living Lab as they complete the worksheet. Dochub is the best editor for changing your documents online. 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 a project of D2L (www.achievementstandards.org). Some places are more prone to earthquakes than others. Yw8SxGk}X3kfTfW& gk`41#'uf7"G\fsN4^8jC7[+%`qFLFKpFc determine the epicenter using the S P (S minus P) method. Type text, add images, blackout confidential details, add comments, highlights and more. Seismic stations detect earthquakes by the tracings made on seismographs. If your seismograph station is 0000000856 00000 n This opens a new window to Michigan Techs UPSeis informational site about earthquakes and seismology. 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. 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. The, amount of time that passes between the Pwave arrival and the Swave arrival is. 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. 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 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. Hand out the worksheets to the groups and direct them to read through the instructions. Y$Kr;V6[;Dq vg~cx:A[^jCssupwD endstream endobj 80 0 obj <> endobj 81 0 obj <>stream Swaves arrive at the seismic station after the Pwaves. A circle is drawn from each of the three different seismograph locations, where the radius of each circle is equal to the distance from that station to the epicenter. The vertical lines, spaced one Locating An Earthquake Epicenter Lab Answer Key PDF Lecture 3 Activity: Locating an Earthquake Epicenter Collect any giveaways for the students, such as earthquake posters or plate tectonic fliers. 0000010002 00000 n 3. epicenter - the point on Earth's surface directly above the focus, or origin, of an earthquake. at that station. Civil engineers, who design houses, apartment buildings, schools, skyscrapers, bridges, highways, tunnels, water treatment facilities, factories and other structures, may use this data to help them create safer structures that are less likely to sustain damage during earthquakes. Richter scale Method of earthquake measurement based on the amplitude of seismic . THREE SEISMOGRAMS Seismogram A - New York, NY 1 minute 1. First, determine the P-wave arrival, and read down to the bottom of the seismogram to note at what time (usually marked in seconds) that the P-wave arrived. approximate period of the surface waves in seconds? =Cv :~4yrXP 62{_,*Uq/O-oUNBr-$y~:G},#3e^CS6U*_zVGY7ZNUWk2f?? {%!,"{u5E&OOqA_"/uxn-kx+Vz*EQb)Q There are two sets of data and maps to do this activity/ lab for than once. As you read and complete the activity, take notes so you can complete the. In the ASN, standards are hierarchically structured: first by source; e.g., by state; within source by type; e.g., science or mathematics; 12 Earthquake Location Lab Answer Key Full PDF - www.yvc.moeys.gov %PDF-1.4 % ACTIVITY 4.2B Locating an Earthquake Figure 4.5 shows - Chegg The calculated distance from each seismometer to the earthquake is shown as a circle. So the difference in the P- and S-wave arrival times determines the distance between the epicenter and a seismometer. 0000004769 00000 n Now on the main page of the Earthquakes Living Lab website (see Figure 2), note the featuring of four active seismic areas and the mapping of real-time and current data from earthquakes happening around the world.
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