Abstract
Propagation of shock waves induced by two Japanese volcanoes is numerically simulated. The volcanoes are Fugendake at Unzen, Nagasaki prefecture and Sakurajima in Kagoshima prefecture. The results demonstrate the significant effect of local topography on the pressure distributions both on the ground and in the air. Simulations are carried out by using a second-order finite-difference scheme in general curvilinear coordinates.
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