Fig. 4: Building damage estimation in areas with noisy DPM signals following the 2020 Puerto Rico earthquake.

This figure demonstrates the ability of Spatial-VCBN to detect building damage patterns despite weak DPM signals. Top row (a–e) and bottom row (f–j) show two different regions. a, f Spatial distribution of λBD, quantifying the causal relationship strength from building damage to DPM; b, g Posterior probability of building damage occurrence; c, h Uncertainty of building damage posterior; d, i DPM showing noisy surface deformation signals; e, j Google satellite imagery showing developed areas with building structures.