Undersea co-seismic crustal movements associated with the 2005 Off Miyagi Prefecture Earthquake detected by GPS/acoustic seafloor geodetic observation
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概要
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We have been carrying out seafloor geodetic observations at two reference points situated off Miyagi Prefecture, northeastern Japan, using the GPS/Acoustic combination technique. Comparison of position estimates before and after the 2005 Off-Miyagi Prefecture Earthquake revealed a co-seismic crustal movement as large as 10 cm eastward at the site approximately 10 km from the epicenter, while no prominent movement was found at another site located 60 km away from the epicenter. The results at these two sites are consistent with crustal deformation calculated from the rectangular dislocation model on the fault derived from crustal movements observed at GEONET stations on land.
- 公益社団法人 日本地震学会、地球電磁気・地球惑星圏学会 、特定非営利活動法人 日本火山学会、日本測地学会、日本惑星科学会の論文
著者
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MOCHIZUKI Masashi
Institute of Industrial Science, the University of Tokyo
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Yabuki Tetsuichiro
Hydrographic And Oceanographic Department Japan Coast Guard
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Ishikawa Tadashi
Hydrographic And Oceanographic Department Japan Coast Guard
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Fujita Masayuki
Hydrographic And Oceanographic Department Japan Coast Guard
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Asada Akira
Instilute Of Industrial Science University Of Tokyo
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Mochizuki Masashi
Institute Of Industrial Science The University Of Tokyo
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Matsumoto Yoshihiro
Hydrographic And Oceanographic Department Japan Coast Guard
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- Undersea co-seismic crustal movements associated with the 2005 Off Miyagi Prefecture Earthquake detected by GPS/acoustic seafloor geodetic observation
- GPS/Acoustic seafloor geodetic observation: method of data analysis and its application