**Acknowledgements**

Sincere gratitude is extended to Dr. Tsunakiyo Iribe, Ryukyu University, who allowed me to apply his computational program, based on the MPS method, to the numerical calculation for tsunami generation due to a landslide.

I also express my gratitude to Ms. Manami Higashi, Mr. Yusuke Irifune, Mr. Hiroshi Matsu‐ moto, Ms. Aya Oyama, Mr. Roan Riu, Mr. Ryo Sawada, and Dr. Kei Yamashita, who contributed to the numerical simulation, as well as the hydraulic experiments, when they were student members of our laboratory.
