Abstract
Due to the presence of adjacent Median Tectonic Line and Mt. Aso, geo-tectonics of Kumamoto and surrounding areas are quite complicated. Although past studies have considered only partial geo-tectonics or individual faults in this area, it is recommended to apply three dimensional representations of wide area geo-technical information for a clearer understanding. As a results, geo-technical characteristics and distribution patterns were analyzed for Togawa-lava of aquifer which is the ground water resource in Kumamoto City. Also, from the distributions of pyroclastic flow sediments Aso-3 and Aso-4 in Mt. Aso, which carries artesian water of Togawa-lava, ground water flow mechanism has been studied for Kamiezuko-Lake (Suizenji). Further, thickness patterns were also investigated for terrace gravel, which is popularly used as foundation material in buildings.
