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http://dx.doi.org/10.7848/ksgpc.2011.29.3.311

Analysis about Seismic Displacements Based on GPS for Management of Natural Disaster  

Park, Joon-Kyu (서일대학 공업계열 토목과)
Yun, Hee-Cheon (충남대학교 공과대학 토목공학과)
Publication Information
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography / v.29, no.3, 2011 , pp. 311-318 More about this Journal
Abstract
On March 11, 2011, an 9.0-magnitude earthquake occurred near the northeastem coast Japanese. It was the largest earthquake that hit Japan since the beginning of modern seismometry. The earthquake occurred 179km east of the Sendai, Miyagi Prefecture, leaving about 27,000 of people confirmed dead, injured or missing due to the earthquake and tsunami. In this study, crustal Deformation in Mizusawa, Tsukuba and Usuda station were calculated based on GPS data in IGS station of Japan. The observation data were processed by precise point positioning and relative-positioning method using on-line GPS data processing services and a high precision scientific GPS/GLONASS data processing software. The coseismic displacements in IGS stations before and after the earthquake were analyzed using kinematic precise point positioning method, and the crustal deformation of the areas before and after the earthquake were precisely calculated using the relative-positioning method. The results of the study calculated precise coordination that the RMSE is maximum ${\pm}0.003m$, respectively and showed that Mizusawa station moved 2.6m southeast by the earthquake.
Keywords
GPS; Precise Point Positioning; Relative Positioning; Coseismic Displacement;
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Times Cited By KSCI : 2  (Citation Analysis)
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