Fig. 1From: Regional terrain-based VS30 prediction models for ChinaThe geomorphological maps of CM Region, CD Region and GG Region: a for CM Region, b for CD Region and c for GG Region. Different colors in maps indicate the different geomorphological units, and the superscript a, b, c in legend mean the cases of low elevation (< 1000 m), medium elevation (1000–4000 m) and high elevation (> 4000 m), respectively. A wide-area map indicating the location of the CM Region, the CD Region, and the GG Region is shown in dBack to article page