Abstract
The Noto Peninsula Earthquake of 2024, which occurred on the 1st day of January, caused extremely extensive damage mainly in the Okunoto region, where the ageing of the population is extremely severe. In this paper, we report some results of population structure changes from 2010 to 2020, in the landslide hazard warning areas, the special landslide hazard warning areas, and areas where actual landslide damage was detected by the Geospatial Information Authority of Japan (GSI), utilizing some open datasets.