Abstract
Results of deep underground structure survey in the Nobi plain and other surrounding large sedimentary plains in Tokai area have been compiled using a web-based geographic information system (Web-GIS). Data and analyzed results on surface soil layers, observed strong motion and microtremor are also included in the system. Web-based 3-D interface has been developed for understanding spatial shape of underground soil structure. Web interface has advantage on network access via the Internet without any special softwear. This system is effective in integrating various kinds of data on ground and earthquake response, and is useful for engineers to assist their structural design and disaster mitigation.
