Homework2 - CEE611 Earthquake Engineering Winter Semester...

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CEE611 – Earthquake Engineering Winter Semester 2007-2008 Homework #2 (Due February 18, 2008) Earthquake Intensity, Magnitude and Locations 1. Kramer 2.5 2. Kramer 2.6 3. Kramer 2.7 4. In Problem #1 (Kramer 2.5), we see that the P- and S-wave arrival times provide a very nice measure of the epicenter location on a map. In this problem, three seismometer locations have been given for the triangulation process. In may instances, three sensor locations would be insufficient because the three locations would not converge. To provide greater accuracy in determining the epicentral distance, many P- and S-wave measurements are sought where one has an over-determined system (measurement redundancy). For example, consider a situation where you have 10 seismographs placed on a Cartesian map: Seismograph Location 1 (2,2) 2 (3,13) 3 (5,9) 4 (7,8) 5 (10,14) 6 (10,4) 7 (12,10) 8 (16,9) 9 (18,12) 10 (18,3) At each seismograph, you simultaneously record the distance from the source to the seismograph using known values for the P- and S-wave velocities. Based on you
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This note was uploaded on 10/13/2009 for the course CEE 611 taught by Professor Linch during the Winter '09 term at University of Michigan-Dearborn.

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Homework2 - CEE611 Earthquake Engineering Winter Semester...

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