Geospatial Information and Natural Disasters –Experience of National Mapping Organization of Japan
Japan is prone to natural disasters, including earthquakes, tsunamis, volcanic eruptions, and floods. In the past, the primary role of the Geospatial Information Authority of Japan (GSI), national mapping organization of the Japanese government, was to prepare thematic maps to delineate the areas of potential risk of natural disasters and to record damage caused by natural disasters on maps for future reference in the months after the disasters have taken place. The latest geospatial Information technologies, however, have enabled GSI to provide more timely geospatial information that is useful even during the immediate response phase of disaster management. This presentation is intended to showcase how these technologies contribute to disaster management by introducing what GSI did in its response to two earthquakes, i.e. Great East Japan Earthquake in 2011 and Kumamoto Earthquake in 2016, and a flood in the western part of Japan in 2018.