activity 4 locating an earthquake epicenter answer key

and S waves to travel any distance up to The earthquake occurred somewhere along that circle. The real-world earthquake data is viewable via a graphical interface using a scaling map. 2. What is an earthquake? important in helping seismologists determine the epicenter of the earthquake. velocity, amplitude, and frequency of the Y$Kr;V6[;Dq vg~cx:A[^jCssupwD endstream endobj 80 0 obj <> endobj 81 0 obj <>stream Refer to the data table and use the difference in arrival times to determine the distance to the earthquake epicenter for Station 2. First locate and mark the three seismic stations on the world map provided below. 13. Contact the teacher to find out the length of the class period, as well as how many copies of handouts and sets of materials you need to bring. locate and label the epicenter of the earthquake on this map. long will it take, to the nearest 0. minutes, for the first P waves to travel from the epicenter to your station? Therefore, the lag In the ASN, standards are hierarchically structured: first by source; e.g., by state; within source by type; e.g., science or mathematics; It is called triangulation because a triangle has three sides, and it takes three seismographs to locate an earthquake. What data is used to determine magnitude? Resources. Every year, earthquakes cause death and destruction worldwide. Looking at the nomogram, students click on each location data point to see where the three lines intersect to read the estimated magnitude. Locating an Epicenter Activity - Arkansas Geological Survey 0000001978 00000 n It is slower than the same earthquake's P wave and cannot travel through liquids. Notify the classroom teacher of technology needs (overhead projector). How far do S waves travel in 5 S-P interval: The time interval between the arrivals of P and S waves. 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). The, amount of time that passes between the Pwave arrival and the Swave arrival is. Subjects: Earth Sciences, General Science Grades: 5th - 8th Types: Activities, Laboratory 13 4 locating an earthquake epicenter geosciences libretexts . epicenter, the longer the lag time measured activity illustrates how the epicenter of an earthquake is found. HTAn minute apart, represent the passage of time 0000103591 00000 n Short for "secondary wave" or "shear wave." 3000 miles. Quick Tips. 0000007097 00000 n The magnitude is the logarithm of the amplitude of the ground wave. 1. What is an earthquake? [k0 |`2dGXGGGd00A(60P-e = F5n -f$ C As discussed earlier in this lesson, this method of determining the epicenter of an . 12), computer or other device with Internet access, journal or writing paper for each student. waves from a distant earthquake. (Grades !5(~q* 0000002094 00000 n Virtual Earthquake (tutorial/simulation) 1996. In order to determine the location of an earthquake epicenter, seismographsfrom at least three different places are needed for a particular event. To locate the epicenter of the earthquake, seismologists use the . Where the 3 circles intersect is the approximate location to the epicenter of the earthquake. Student exploration Graphing Skills SE Key Gizmos Explore Learning. Please answer the following questions using the earthquake video - shake, shake, shake. What are those limits? All 100,000+ K-12 STEM standards covered in TeachEngineering are collected, maintained and packaged by the Achievement Standards Network (ASN), They use three seismographs in a process called triangulation to determine earthquake epicenters. Describe the process of triangulation to locate an epicenter. You learned that seismologists determine the distance to the earthquake epicenter using the difference between S and P wave arrival times. earthquake. 61 0 obj <> endobj xref (Listen to student ideas.) This worksheet focuses on using the p and s graph to find different variables. [*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 epicenter: A point on the Earth's surface that is directly above the place where the underground forces of an earthquake originate. 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. 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. "`B(R6sj [CX7p+s =#;~ `'kA Fill Locating The Epicenter Of An Earthquake Worksheet Answers, Edit online. 0000006011 00000 n (Grades Details. Thanks for your feedback! 3. 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. 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. Facility Name Busine Child ren Information Child Name C. Child Social Security Number Type of Case being filed - Check only one category. by. The calculated distance from each seismometer to the earthquake is shown as a circle. S waves. 0000079769 00000 n distance = travel time for S waves Figure 2. Use mathematical representations of phenomena or design solutions to describe and/or support claims and/or explanations. 87 0 obj <> endobj xref 87 28 0000000016 00000 n Even though the scale formulae are different, MMS retains the familiar continuum of magnitude values defined by the older scale. After reading about earthquakes, open a new window to an Earthquake Simulator at, Follow the simulation instructions. Follow this simple guide to edit Locating the epicenter of an earthquake worksheet answer key in PDF format online free of charge: Explore all the advantages of our editor right now! 9 - 1. Another method of locating an earthquake is to use the P-wave arrival-time minus origin-time (P - O) interval instead of distance. minutes = 6 minutes. Point on Earth's surface directly above an earthquake's focus. Do you agree with this alignment? The vertical lines, spaced one 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 An earthquake is the violent movement of tectonic plates in the Earth's crust. Once three seismographs have been located, find the time interval between the arrival of the P-wave and the arrival of the S-wave. The spot where those three circles intersect is the epicenter (Figure 13.12). These natural disasters may be mitigated, however, by insightful and creative engineering. Assess their understanding based on the thoroughness of their answers. 0000006984 00000 n 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. HtA1D41`s(GME$Ke*YdEOYf2-:r. HTn {0,`K6}(J6]&Q^"!q57y_VQ9fp3/?Mc=KGsrrt:c\$Lh`4}>C>`qcSj0[YpZ_Su(322/N Z./$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 MS-ESS3-2. Note the differences in hb```b````e``n`d@ A 'EF''oquE"ky#:}m;9JmkPt~=unFHy&|X:70 vILZ*|%6mD! The farther away the epicenter is, the greater the difference . What is the time lag for the Seattle, Washington, seismic station? Empirical evidence is required to differentiate between cause and correlation and make claims about specific causes and effects. A. Seismic waves-waves generated by an earthquake, can move the ground forward and back- answers the question. Why might the triangulation method not always produce an exact point (other than your measurement errors)? Though the distance to the epicenter can be determined using a travel-time graph, the direction cannot be told. The longer the time between the arrival of the P-wave and S-wave, the farther away is the epicenter. Doing this generates an S-P interval graph (time vs. distance, called the travel-time curve graph) from which they determine and select three epicentral distances. To abbreviate, use the symbol M (a capital M, plain text, no sub/superscripts) expressed to the nearest 0.1. Sixty-seven people lost their lives, and property damage was estimated at $6 billion. 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. 0000004060 00000 n How is the magnitude of an earthquake determined? Every earthquake is recorded on numerous seismographs located in different directions. Lab Exercise #2: Locating the Epicenter of an Earthquake In this lab exercise, you will locate the epicenter of an earthquake. If the lag time were measured at a location closer to the epicenter, how would it compare The period of a wave is the time between two adjacent wave peaks. The Earthquakes Living Lab gives students the chance to track earthquakes across the planet and examine where, why and how they are occurring. 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. Use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media. Answer Key: Lab 5 Earthquakes - Find People EARTHQUAKES: Epicenter Determination and Seismic Waves . 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. Locating an Epicenter through Triangulation of Seismic Data- Remote/Hybrid/Live. What is the It takes S waves 14. The USGS and its partners monitor and report earthquakes, assess earthquake impacts and hazards, and .

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