Sun. Jun 6, 2021 9:00 AM - 10:30 AM Ch.17 (Zoom Room 17)

convener:Ryota Hino(Graduate School of Science, Tohoku University), Shuichi Kodaira(Research Institute of Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology), Toru Matsuzawa(Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Tohoku University), Takeshi Iinuma(National Research and Development Agency Japan Agency for Marine-Earth Science and Technology), Chairperson:Takeshi Iinuma(National Research and Development Agency Japan Agency for Marine-Earth Science and Technology), Toru Matsuzawa(Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Tohoku University)

In the 2011 JpGU Meeting held immediately after the 2011 Tohoku-Oki Earthquake, an emergency session related to this earthquake was set up and 188 research results were reported. Not only was there a preliminary report of research and observations regarding this giant earthquake and tsunami, but also various important ideas indicating directions of subsequent solid-earth science researches were presented: the mechanism of earthquake generation including possible processes leading its large-scaled seismic rupture, the impact of the Tohoku-Oki earthquake on the inland crust, and limitations and effectiveness of early warning regarding earthquakes and tsunamis. Ten years after the 2011 JpGU, which was held just two months after the quake, how far has our understanding of these research themes progressed? In addition to the accumulation of 10 years of researches, our understanding of giant earthquakes and tsunamis has dramatically increased through the observations of post-Tohoku Earthquake phenomena of various kinds that have been progressing over a long period of time and through the newly developed observation networks in the offshore area. In this session, not only the researches on the Tohoku-Oki earthquake and tsunami itself, but also the research results in various solid-earth science fields that have clarified after this earthquake and tsunami will be brought together, to discuss the direction of research that should be aimed at in the future.