Abstract
Responding to the devastating damage caused by the Great East Japan Earthquake, coastal researchers and practitioners start to investigate the possible reactions towards supposed maximum tsunamis throughout Japan. In Kagoshima prefecture, caution should be paid on not only seismic tsunamis originated from plate boundaries, but also volcanic tsunamis caused by sea bottom eruptions near the Sakurajima Island. Since the study area is the closed water basin, the tsunami behaviors occurred there will be totally different from those in open sea areas. The present study conducts numerical analyses on the tsunami propagations by varying the source points and sea bottom deformations, and investigates the characteristics of the tsunamis inherent in closed water basins.
