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At around 5:56 in the afternoon of 23 October 2004, a magnitude 6.8 earthquake struck the Chuetsu district of Niigata Prefecture. That was followed by a M 6.0 quake at 6:11 p.m. and a M 6.5 quake at 6:34 P.M. As a result, 46 people were killed, about 4700 people were injured, and more than 15000 homes were partially or completely damaged by structural collapse, landslide, or other cause (18 March 2005 survey of the Fire and Disaster Management Agency, Japan). The Geographical Survey Institute (GSI) quickly publicized models of crustal movement and faults by using continuous observation data at the GPS-based control stations. It has also been taking various responses to this seismic damage such as conducting emergency on-site surveys, taking emergency aerial photographs, compiling orthophoto, providing information about damaged areas through the Internet, compiling seismic damage maps and maps for earthquake countermeasures and distributing these products to related organizations (GSI 2005a). This paper provides an introduction to our efforts in these GSI’s disaster responses. First, we were able to quickly identify areas and types of damage arising from landslides, compile the data into geographic information and disaster maps, and provide them to the public and relevant organizations. Second, we compiled two types of 1:25 000 earthquake damage maps. One is detailed version maps which assist in restoration and recovery efforts, and provide a record of the damage that can be of use in landslide research. The other is color-shaded version maps which show with great precision the patterns and locations of damage using high-precision elevation data obtained from airborne laser scanning.