Fig. 5From: Estimation of ballistic block landing energy during 2014 Mount Ontake eruptionSimulated distributions of deposited particles with rotation angles of a γ = 20°, b γ = 40°, c γ = 60°, and d γ = 80°. Numerical simulations were performed with an ejection speed of v e = 150 m/s, a direction angle of α = 20° from the north, and a drag coefficient of C D = 0.8. Each simulation used 3000 particles. Black lines are the boundaries of the impact crater zones, as reported by Kaneko et al. (2016) (see the caption of Fig. 4)Back to article page