Possible Cause of Heavy Damage in Mashiki, Kumamoto, Inferred from Observed Data of the 2016 Kumamoto Earthquake: a High-Stress Patch Below the Site

Hiroshi Kawase, Kyoto University, Disaster Prevention Research Institute, Kyoto, Japan, Shinichi Matsushima, Kyoto University, Disaster Prevention Resarch Institute, Uji, Japan, Fumiaki Nagashima, Kyoto University, Disaster Prevention Research Institute, Uji, Japan and Kenichi Nakano, HAZAMA ANDO CORP., Technical Research Institute, Tsukuba, Japan