[SSS10-P12] The stress change of Chubu region before and after the 2011 Tohoku-oki Earthquake(Mw9.0)
Keywords:Tohoku-oki Earthquake, Inland Earthquake, Neodani fault system, stress field inversion
At first, I demonstrated the stress field inversion method (Hardebeck & Michael, 2006) by synthetic data to check the performance of this inversion method. As a result, I found that the inversion method will analyze real data well.
Next, I conduct stress field inversion for the joint observation data by eight Universities in Japan and NIED (National Research Institute for Earth Science and Disaster Resilience in Japan) in the Chubu region between 2009 and 2013. As a result, I found the stress field in Neodani fault system didn’t change significantly before and after Tohoku-oki earthquake.