On 14:46 11 March 2011, a mega earthquake of Richter scale of magnitude 9.0 occured off the Pacific coast of Tohoku, north east region of Japan which shook much part of east Japan with the JMA Seismic Intensity of 6 or more; then large tsunami arrived at the coast of the Pacific several times. From this intense natural phenomenon, social infrastructures including life lines and logistics in many parts of east Japan were heavily damaged and the Pacific coast stretching over 500 km were struck by
On 14:46 11 March 2011, a mega earthquake of Richter scale of magnitude 9.0 occured off the Pacific coast of Tohoku, north east region of Japan which shook much part of east Japan with the JMA Seismic Intensity of 6 or more; then large tsunami arrived at the coast of the Pacific several times. From this intense natural phenomenon, social infrastructures including life lines and logistics in many parts of east Japan were heavily damaged and the Pacific coast stretching over 500 km were struck by