Identification of Surface Deformation Associated with the 2026 Kumamoto Earthquake Using Satellite Imagery, Aerial Data, and Field Surveys

During the 2026 Kumamoto Earthquake, surface deformation was identified using interferometric SAR analysis, pixel offset analysis, and visual interpretation of optical satellite imagery. Field surveys were then conducted based on these results. Aerial photography and airborne LiDAR surveying were also performed, and surface deformation was interpreted in detail using simplified orthophotos, slope maps, and elevation difference maps derived from the acquired data. The combined use of satellite imagery, field surveys, aerial photographs, and LiDAR data enabled surface deformation to be identified at different spatial scales.