Abstract
The Great East Japan Earthquake that occurred on March 11, 2011 caused an unprecedented catastrophic disaster in the Japanese history. The coastal areas of the Pacific Ocean in the Tohoku and Kanto regions sustained devastating tsunami damage along with serious nuclear accidents. Moreover, the tremors of the earthquake caused the liquefaction of soils , inflicting a serious ground disaster on reclaimed residential lanｄ..Considering the increasing reports of residential damage caused by earthquakes in recent years, the Japanese Geotechnical Society (JGS) initiated a licensing system for “Professional Engineer for Geotechnical Evaluation (PEGE).” JGS also conducted many research activities including site investigations and technical recommendations in collaboration with the Science Council of Japan, the Ministry of Land, Infrastructure, Transport and Tourism, the affected local governments, the legal circles, and other academic societies.
