While three prefectures hit hard by the March 2011 Great East Japan Earthquake have taken the disaster as a learning opportunity, multiple challenges remain regarding tsunami evacuation measures.

Just last year, residents of Iwate, Miyagi and Fukushima prefectures evacuated following tsunami warnings and advisories issued after a powerful quake struck Russia*s Kamchatka Peninsula in July and another temblor off northeastern Japan in December.

In the March 11, 2011, disaster, the sheer number of evacuees overwhelmed evacuation centers, disrupting the distribution of relief supplies. Learning from this, the Miyagi Prefectural Government developed a system to accurately grasp the number of evacuees using a smartphone app that incorporates the My Number personal identification card.