Japan Geoscience Union Meeting 2015

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Oral

Symbol M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS33] Progress in marine geoscience off Pacific coast of Tohoku after the 2011 earthquake and tsunami

Tue. May 26, 2015 9:00 AM - 10:45 AM 102B (1F)

Convener:*Kazuko Usami(Institute of Geology and Geoinformation, National Institute of Advanced Industrial Science and Technology), Ken Ikehara(Institute of Geology and Geoinformation, National Institute of Advanced Industrial Science and Technology), Yoshihiro Ito(Disaster Prevention Research Institute, Kyoto University), Takashi Toyofuku(Japan Agency for Marine-Earth Science and Technology (JAMSTEC)), Chair:Yoshihiro Ito(Disaster Prevention Research Institute, Kyoto University)

Many studies on submarine topography and structure, tectonic deformation, sediment and radioactive material movement and marine biology at off Pacific coast of Tohoku region have been proceeded after the 2011 off the Pacific coast of Tohoku Earthquake and tsunami. In this session, we discuss drastically expanded knowledge and results by these studies carried out at the Japan Trench, inner slope and shallow-water regions along with the changes of marine environments, sea-floor sediments and sea bottom through four years after the earthquake, leading interdisciplinary knowledge sharing. We will organize "what occurred corresponding to the earthquake and tsunami" and "what is going on in the area after the 2011 event", indicating future direction of the survey, through the oral/poster papers and discussion.

9:00 AM - 9:15 AM

[MIS33-01] Monitoring of seismic activity around the source region of the Tohoku-oki earthquake by ocean bottom seismometers

*Masanao SHINOHARA1, Tomoaki YAMADA1, Kazuo NAKAHIGASHI2, Yuya MACHIDA3, Takashi SHIMBO4, Kimihiro MOCHIZUKI1, Hajime SHIOBARA1, Yoshio MURAI5, Ryota HINO6, Yoshihiro ITO7, Toshinori SATO8, Kenji UEHIRA4, Hiroshi YAKIWARA9, Koichiro OBANA3, Shuichi KODAIRA3 (1.Earthquake Research Institute, the University of Tokyo, 2.Kobe University, 3.Japan Agency for Marine-Earth Science and Technology, 4.National Research Institute for Earth Science and Disaster Prevention, 5.Hokkaido University, 6.Tohoku University, 7.Disaster Prevention Research Institute, Kyoto University, 8.Chiba University, 9.Kagoshima University)

9:45 AM - 10:00 AM

[MIS33-04] Regional distribution of seafloor displacement detected by bathymetric surveys after the 2011 Tohoku-oki earthquake

*Toshiya FUJIWARA1, Shuichi KODAIRA1, SANTOS FERREIRA, Christian DOS2, Gou FUJIE1, Yuka KAIHO1, Yoshiyuki KANEDA3, Takafumi KASAYA1, Yasuyuki NAKAMURA1, Tetsuo NO1, Takeshi SATO1, Michael Strasser4, Narumi TAKAHASHI1, Tsutomu TAKAHASHI1, Gerold Wefer2 (1.Research and Development Center for Earthquake and Tsunami, JAMSTEC, 2.MARUM, Center for Marine Environmental Sciences, University of Bremen, 3.Disaster Mitigation Research Center, Nagoya University, 4.Geological Institute, ETH Zurich)

10:00 AM - 10:15 AM

[MIS33-05] Spatial extent of sedimentation triggered by the 2011 Tohoku earthquake from short-lived radioisotope data, Japan Trench

*Cecilia MCHUGH1, Toshiya KANAMATSU2, Leonardo SEEBER3, Marie-helene CORMIER4, Richard BOPP5, Ken IKEHARA6, Kazuko USAMI6 (1.Queens College, C.U.N.Y., USA, 2.JAMSTEC, Japan, 3.Lamont-Doherty Earth Observatory, USA, 4.University of Rhode Island, USA, 5.Rensselaer Polytechnic Institute, USA, 6.Geological Survey of Japan, AIST)