Extended GPS/Acoustic geodetic observation near the Japan trench axis for the study of the giant 2011 Tohoku-oki earthquake

H. Fujimoto, M. Kido, T. Iinuma, Y. Osada, J. Yamamoto, K. Tadokoro, M. Sato

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

GPS/Acoustic seafloor geodetic observation played a key role to estimate the slip distribution of the 2011 giant Tohoku-oki earthquake. After the event, seismic coupling near the trench axis has been a focus to understand how such a huge earthquake occurs in a subduction zone. Observation of postseimic deformation is another and urgent task required in the Japan Trench. In order to realize these observations, we have newly installed 20 GPS/A observation sites extending some 400 km along the Japan Trench in September 2012. Precision acoustic transponders were newly developed to cope with the following three requirements: (1) observation on the deep seafloor, (2) compatibility among three institutions in Japan, and (3) observation for ten years.

Original languageEnglish
Title of host publication2013 IEEE International Underwater Technology Symposium, UT 2013
DOIs
Publication statusPublished - 2013
Event2013 IEEE International Underwater Technology Symposium, UT 2013 - Tokyo, Japan
Duration: 2013 Mar 52013 Mar 8

Publication series

Name2013 IEEE International Underwater Technology Symposium, UT 2013

Conference

Conference2013 IEEE International Underwater Technology Symposium, UT 2013
Country/TerritoryJapan
CityTokyo
Period13/3/513/3/8

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