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Earthquake location using a 3D velocity model : an example in Sichuan Province, China

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dc.contributor.advisor M. Nafi Toksöz. en_US
dc.contributor.author Vincent, Carolynn E. (Carolynn Elizabeth), 1976- en_US
dc.contributor.other Massachusetts Institute of Technology. Dept. of Earth, Atmospheric, and Planetary Sciences. en_US
dc.date.accessioned 2010-10-12T16:04:23Z
dc.date.available 2010-10-12T16:04:23Z
dc.date.copyright 2000 en_US
dc.date.issued 2000 en_US
dc.identifier.uri http://hdl.handle.net/1721.1/59092
dc.description Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 2000. en_US
dc.description Includes bibliographical references (leaves 50-52). en_US
dc.description.abstract We investigate the benefits of applying three-dimensional velocity models to seismic event location. We develop a technique for three-dimensional seismic event location, utilizing a finite difference method for travel time calculation and a grid search method for location. We apply this technique to the location of three events in Sichuan Province, China, an area of complex deformation and scattered seismicity. The lateral differences between published event locations and those obtained using this three dimensional technique are between 6.2 and 12.8 km, suggesting that the relocation of a larger number of events may refine our understanding of deformation in this region. The locations using the three-dimensional velocity model compare favorably with locations using a one-dimensional model, returning location depths consistent with the geology of the area and showing smaller location variability when using a jackknifing technique. en_US
dc.description.statementofresponsibility by Carolynn E. Vincent. en_US
dc.format.extent 52 leaves en_US
dc.language.iso eng en_US
dc.publisher Massachusetts Institute of Technology en_US
dc.rights M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. en_US
dc.rights.uri http://dspace.mit.edu/handle/1721.1/7582 en_US
dc.subject Earth, Atmospheric, and Planetary Sciences. en_US
dc.title Earthquake location using a 3D velocity model : an example in Sichuan Province, China en_US
dc.title.alternative Earthquake location using a three dimensional velocity model : an example in Sichuan Province, China en_US
dc.type Thesis en_US
dc.description.degree S.M. en_US
dc.contributor.department Massachusetts Institute of Technology. Dept. of Earth, Atmospheric, and Planetary Sciences. en_US
dc.identifier.oclc 48615256 en_US


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