Undersea co-seismic crustal movements associated with the 2005 Off Miyagi Prefecture Earthquake detected by GPS/acoustic seafloor geodetic observation

被引：30

作者：

Matsumoto, Yoshihiro

Fujita, Masayuki

Ishikawa, Tadashi

Mochizuki, Masashi

Yabuki, Tetsuichiro

Asada, Akira

机构：

[1] Japan Coast Guard, Hydrog & Oceanog Dept, Chuo Ku, Tokyo 1040045, Japan

[2] Univ Tokyo, Inst Ind Sci, Meguro Ku, Tokyo 1538505, Japan

来源：

EARTH PLANETS AND SPACE | 2006年 / 58卷 / 12期

关键词：

GPS/acoustic; seafloor geodetic observation; co-seismic crustal movement; the 2005 Off Miyagi Prefecture Earthquake;

D O I：

10.1186/BF03352663

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

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.

引用

页码：1573 / 1576

页数：4

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