The 11-3-11 Mw=9.0 earthquake NE off Japan triggered a tsunami hitting eastern Honshu, sweeping away industrial, urban and agricultural zones. High seismic hazard met high vulnerability (investment and development) exceeding the high capacity of Japan. Types of hazardous released emissions call for long-term treatment issues. It is a NaTech so complex that it is very difficult to assess the risks of the synergistic/antagonistic action of pollutants in a variety of environments.