While Japan is blessed with a rich natural environment, it is constantly under threat from the natural disasters. The effective response to a disaster includes timely information collection and provision of support for the prevention of secondary disasters and the prompt formulation of recovery activity plans. Our efforts in this area should involve considering the scale of the disaster, the region that it has struck in, the weather conditions in the affected region, and other factors, and then understanding the situation quickly using the optimal method. PASCO's approaches consist of observing wide area information and 3D data creation (for narrow area with high accuracy), quick analysis of the acquired data from various sensing systems, their visualization & provision, data transmission and immediate processing functions in the areas after the occurrence of a disaster. In the presentation, PASCO explains about the disaster response for damaging floods in the wide areas caused by torrential rain triggered by two typhoons in the Kanto/Tohoku region (north of Tokyo) in 2015, Kumamoto earthquakes in 2016 and damages caused by powerful Typhoon No. 10 (Lionrock) in 2016.