This facility was established after the Great Hanshin-Awaji Earthquake. With experimental models as large as 1/30 to 1/15, this is used to clarify port and airport behavior during an earthquake and ground liquefaction characteristics and to develop new technologies for making eismically isolated or damped structures. The shake table (6 m dia.) at the bottom of the water ank (13 m square and 2 m deep) can be vibrated in three dimensions (two horizontal directions and one vertical direction) to create seismic forces for underwater structure models of port and airport facilities.

　* This is the world's largest underwater shake table capable of generating seismic motion (acceleration) of up to double the gravitational acceleration.