We have developed the Quick Estimation System for Earthquake Maps Triggered by Observation Records (QuiQuake). QuakeMap, a part of QuiQuake, has been published on a website (http://qq.ghz.geogrid.org/) since October 13, 2009. In this system, an amplification capability map of ground motion (Vs30 map) based on a 250-m grid cell map of geomorphologic classification in Japan owned by AIST and seismic observation records from K-NET and KiK-net released by the National Research Institute for Earth Science and Disaster Prevention (NIED) are processed on a cluster computer of AIST. The system estimates and illustrates the wide-ranging and detailed ground motion of earthquakes immediately after the release of seismic observation records. Furthermore, ground motion maps for about 5,000 major earthquakes after June 1996 have been computed and archived such that they chronologically represent the seismic motions over the last 13 years. It is expected that these maps will be used as fundamental information for municipalities and private companies to develop business continuity plans (BCPs) and to take effective countermeasures against seismic disasters.