Figure 8. Relationships among various parameters at Site 2. (a) Averaged maximum acceleration versus the number of starting points of boulder falls with the best-fit linear relation (red line). (b) Density of small craters versus mean slope angle. (c) Density of small craters versus averaged OMAT values. (d) Mean slope angle versus averaged OMAT values. The study area was subdivided into grids with dimensions of 500 m × 500 m in (a), about 800 m × 900 in (b) and (c), and 400 m × 450 m in (d). Red diamonds and associated error bars in (b) and (c) show the averages and standard deviations of the density of small craters in the individual 2º slope angle bins and 0.02 OMAT bins, respectively.