In this paper, various soil data, observed seismic ground motions and microtremor data have been collected and compiled in Tokai area and Nagoya city. Now we have over 500 seismic observation sites in Aichi, Gifu and Mie prefectures, and over 300 points in and around Nagoya city have been examined by microtremor observations. Database are totally organaized and is opend to public by use of WWW. Such data are important for the newly developed performance based seismic design and the seismic damage estimation for urban disaster prevention.
