Research Theme
An earthquake is a phenomenon, which begins at its source with fault ruture and is completed after the propagation of generated “seimic shaking” through velocity structures and the excitation of seismic ground motions/seismic waves and deformations at a site (Fig. 1). This laboratory works for these seismic ground motions/seismic waves, and ground deformations based on the research theme:"Think Seismic Shaking Scientifically."(*)
Although both seismic ground motions and seismic waves represent “seimic shaking”, it can be common that shakings in the near-field of an earthquake source are called seismic ground motions, and those in the far-field are called seismic waves. Among them, our principal research subject is seismic ground motion including ground deformation, such as strong shaking causing disasters (strong ground motion) and long-period ground motion.
In 2018, the book entitled "Physics of Seismic Ground Motion" was published to explain the equations and methods used in analyses and computations of seismic ground motion.
(*) A Japanese book with the same title was published in 2006, but this page was published in 2004.
Fig. 1. Seismic shaking and seismic ground motions/seismic waves (based on Taga, 1982).
Objectives of the Laboratory
- Objectives 2004
- “Strong Motion Seismology” (Research Hightlight in 2009-2010 ERI Overview)
- “Research on long-period ground motions” (Research Hightlight in 2010 ERI Overview)
- Past Objectives
Publications from the Laboratory
- List of Papers by Google Scholar (in order of number of citations)
- List of Papers by Google Scholar (in order of publication year)
Research Projects
- Running Research Projects
- Integrated Research on Great Earthquakes and Disaster Mitigation in Nepal Himalaya (JST & JICA, 2015∼2021: PI)
- Communication of the long-term hazards of seismic ground motion and tsunami (MEXT, 2014∼2019: PI)
- Seismic Kanto Project (2000 supplementary MEXT budget etc., 2000∼: PI)
- Completed Research Projects
- Investigation of ground-motion to damage relationship in the Kathmandu Valley from aftershock and microtremor observations (JST, 2015∼2016: PI)
- Assessment of seismic risk in Istanbul based on the integration of historical seismology and structural engineering (JSPS, 2014∼2015: PI)
- Seismic resistance of bridges due to a Shuto Chokka earthquake (East Nippon Expressway, 2014∼2016: PI)
- Development of the next generation ground motion prediction equation (Grant-in-Aid for Scientific Research (A), 2011∼2016: PI)
- Support Program for Long-Period Ground Motion Hazard Maps (MEXT, 2010∼2011: PI)
- Investigation of Propagation Characteristics in Design Base Ground Motions (JNES, 2010∼2012: PI)
- Information Network for Natural Disaster Mitigation and Recovery (JST & JICA, 2009∼2014: PI in UT)
-
Research on Upgrade of Ground Motion Prediction Method
(NLIRO, 2009∼2012: PI)
- Multi-disciplinary Hazard Reduction from Earthquakes and Volcanoes in Indonesia (JST & JICA, 2008∼2012)
- Strain Concentrated Belts Research Project (MEXT, 2008∼2013)
- Special Project for Earthquake Disaster Mitigation in Tokyo Metropolitan Area (MEXT, 2007∼2012)
- Comprehensive Study on Long-Period Ground Motions and Mitigation of Their Urban Disasters (Grant-in-Aid for Scientific Research (C), 2006 & (A), 2007∼2011: PI)
- Integrated Velocity Structures Database Project (Special Coordination Funds for Promoting Science and Technology, 2006∼2011)
- JSPS-LIPI Joint Research Project (JSPS, 2007∼2008)
- Integrated Research Project for Itoigawa-Shizuoka Tectonic Line (MEXT, 2005∼2010)
- Integrated Research Project for Miyagi-Oki Earthquakes (MEXT, 2005∼2010)
- Coseismic Stability of Methane Hydrate Exploitation during Giant Earthquakes along Nankai Trough (JOGMEC, 2003∼2005: PI)
- Special Project for Earthquake Disaster Mitigation in Urban Areas: Theme I (MEXT RR2002, 2002∼2007)
- Development of the Strong Motion Simulator for Earthquake Disaster Prediction in Urban Areas (JST, 2001∼2004: PI)
Jul. 03, 2004
Jul. 07, 2009
Feb. 20, 2011
May 12, 2017
Dec. 27, 2018
Apr. 24, 2022
Jan. 05, 2023