These waves are also referred to as primary or compressional waves. endobj Vehicle A would take 10 hours to travel The lag time here is 10 hours. %��������� Solving for magnitude. Remember to convert minutes to seconds. 15 0 obj 10 0 obj endstream stream Thank you for submitting feedback on this help document. 6 0 obj 2 0 obj Solution: Magnitude = NOT CALCULATED. Charles Richter and Wood-Anderson seismograph methodDr. After looking at the Earthquake Time Travel Graph, it is clear that the two curves have a difference of 5 units on the time axis at x = 3.4. to improve Maple's help in the future.
Earthquake Seismometer Equations Calculator Earth Science Geology Geophysics Seismology Formulas. 1913 These waves are also referred to as secondary or shear waves. So, the pattern you should note here is "the greater the distance, the longer the lag time."
endobj 18 0 obj Calculate Lag-time: - Look at the seismograms on the back. Therefore the earthquake has an epicenter distance of 23 0 obj 8 0 R /I true /K false >> >> V; Maplesoft™, a subsidiary of Cybernet Systems Co. Ltd. in Japan, is the leading provider of high-performance software tools for engineering, science, and mathematics. >> The first type of wave to consider when determining the epicenter of an earthquake is the .
176 This basic approach to locating quakes is illustrated using an example of an earthquake near Mexico. >> The cross sec-tion shows a sediment-laden river flowing into the ocean. By using three or more seismographs, however, a scientist can triangulate a location.
Therefore the earthquake has an epicenter distance of km, or 3,400 km. endobj Sign in, choose your GCSE subjects and see content that's tailored for you.Seismic records can be used to determine the location of the of the earthquake.
First, enter the names of the three stations and Rev 6/ 2014 These seismograms show records from three cities following an earthquake. = 6.0 min. x��� !�����Pa��0`��0`��0`��0`��0`��0`��0`��0`��0`��0`��0`��0`��0`��0`��0`��0`��0`��0`��0`��0`��0`��0`��0`��0`��0`��0`��0`��0`������sf 14 0 obj
Stresses build up over time (usually caused by the slow movements of tectonic plates) and eventually a piece of the Earth's brittle crust deep under ground breaks (the technical term is ruptures). << /Length 10 0 R /Type /XObject /Subtype /Image /Width 1003 /Height 144 /Interpolate 8 0 R /I true /K false >> >> Vehicle A would take 10 hours to travel 500 miles, but Vehicle B would take 20 hours. endobj
endobj /Cs1 7 0 R >> /Font << /Tc1.0 21 0 R >> /XObject << /Im1 9 0 R /Im2 14 0 R © Maplesoft, a division of Waterloo Maple Inc. 2020. • /Pl1 28 0 R >> >> true /ColorSpace 8 0 R /SMask 34 0 R /BitsPerComponent 8 /Filter /FlateDecode stream 312 /Extend [ false false ] /Function 31 0 R >> (1) amount of damage caused by an earthquake (2) intensity of an earthquake (3) distance to the epicenter of an earthquake (4) time of occurrence of the next earthquake Base your answers to questions 47 and 48 on the cross section and data table shown below. Seismogram #1 P.S./E. Seismic records can be used to determine the location of the epicentre of the earthquake. endobj 1. 32 0 obj The arrival times P and S waves are provided.
The same method of calculation may be used for earthquake waves (P-waves and S-waves). Determine the distance of the earthquake epicenter given the following information.To determine the distance of the earthquake epicenter, you can use the steps in the previous section. << /Length 5 0 R /Filter /FlateDecode >>
x�]u@��g���.AAT�n�Bl��V���;_�L���B�BE��U�7ۻw{pw�k|������g>����-Z�h�2�e@ˀ�-Z�h�2�e@ˀ�-Z�h�2�e@ˀ�-Z�h�2�e@ˀ�-Z�h�2�e@ˀ�-Z�h�2�e@ˀ�-Z�h�2�e@ˀ�-Z�h�2�e@ˀ�-Z�h�2�e@ˀ�-Z�h�2�e@ˀ�-Z�h�S�Xl.���q9,���C�ØR�_��_XyY�ʔ�/60�q�Z�z�*��z"[s�X\>qp�! 30 0 obj Calculator: Generate a listing of phase arrival times at YOUR seismic station Recent Earthquakes; Specify Earthquake; Graph of seismic travel time in minutes versus distance in degrees for an earthquake at the Earth's surface; Table of P and S minus P times versus distance in degrees; Composite ANSS list of earthquakes for the past 14 days
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earthquake lag time calculator