Comparison of SAR-Based Building Damage Estimation Results with Measured Seismic Intensity and Building Damage in the 2024 Noto Peninsula Earthquake

On January 1, 2024, at 16:10 JST, a magnitude (Mj) 7.6 earthquake struck the Noto Peninsula in Ishikawa Prefecture. The earthquake caused extensive damage in Ishikawa Prefecture, with more than 300 people killed and over 6,000 buildings damaged (as of September 2024). In the Noto Peninsula earthquake, several organizations are attempting to use satellites and other means to obtain an overview of the earthquake damage from the sky in order to quickly assess the extent of the damage after the earthquake. Here, we examine the “building damage potential” data from this study, which was conducted using satellite-based SAR imagery. The study organized the relationship between “building damage potential” based on SAR images and measured seismic intensity, a typical seismic intensity index. Comparisons with actual building damage were made to confirm the validity of the estimation results using Multi-wavelength SAR.