Abstract
We have stored detailed digital elevation model (DEM) data published by the Geospatial Information Authority of Japan (GSI) since the Basic Act on Promotion of Utilization of Geographical Information came into effect in 2007. We produced stereoscopic images from all files of 5-m-mesh DEM and 10-m-mesh DEM of the GSI and interpreted them in geographic information systems. As a result, smaller fault scarps and fault-related broad deformations were newly identified in numerous sites. We report several of those examples, which indicate that stereoscopic images from detailed DEM data should be systematically applied to active fault research, in addition to reviewing the advantages of DEM-based stereoscopic images.
