Demo of the MapMosaic tool developed by M. Lobo from INRIA ILDA team (http://www.tandfonline.com/doi/full/10.1080/13658816.2017.1325488). MapMosaic helps users compositing different map layers (topographic maps, aerial images, rendered vector data...) in a single view. The demo shows how MapMosaic can be used for the management of tsunami risks: the submersion levels are visualized with the map and escape areas are identified for the school located in the submersion area.