The southern coast of Kanto District has no more than being attacked by a few destructive tsunamis, in compare with the coast of Kumano-nada and Sanriku.
The tsunamis given damage on this coast have occurred in Sagami Bay, near Izuoshima, off the south-east coast of Boso Peninsula and in Enshu-nada, and the ones occurred in Kumano-nada and off Kii Peninsula give locally damage, as well as in case of the Chilean Tsunami. It must be noticed that two or three tsunamis had occurred at the same time along the offshore coast from Kanto District to Kinki one.
There is no definite record that tsunami gave large damage on the inner coast of Tokyo Bay. From the height distribution of the Kanto Tsunami of 1923 and the Chilean Tsunami of 1960 in Tokyo Bay, the height of tsunami in the inner coast of the bay never increase, in order to possess large reflection and friction of sea bed in the bay. These facts can be also explained theoretically.
