Abstract
The 2011 Tohoku, Japan earthquake caused extensive liquefaction to the coastal area of the Tokyo Bay and to the lower banks of the Tone River in North Kanto region. Since underground water pipeline is pulled out at the joint part due to the liquefied ground deformation, the number of pipeline damage would be an indicator of the liquefaction severity. Referring to the analysis of pipeline analysis in the Kashima region along the lower banks of the Tone River, the pipeline damage was not homogeneously distributed but concentrated locally in the size of 1 km2. This study analyzes this concentration area from the landform and land use change. The damage concentration area was able to be clarified by using the old topographical maps compiled in 1880's though it was difficult to specify it by present topographical maps.
