Tsunami height & inundation area prediction service

Predicting the height and damage of the tsunami expected caused by a massive earthquake and protecting the lives of coastal residents

Contribute to the development of areas resilient to tsunami disasters by national and local governments

The Act on Development of Areas Resilient to Tsunami Disasters, which was enforced in December 2011 in response to the large-scale tsunami disaster caused by the Great East Japan Earthquake, requires prefectural governments to establish and announce inundation areas and depths for the “largest class of tsunami” which can cause enormous damage, and to promote the development of areas resilient to tsunami disasters and designate tsunami disaster warning areas.

Image of inundation area caused by tsunami based on the Act on Development of Areas Resilient to Tsunami Disasters

Our tsunami height & inundation area prediction service

We are a leading company in the field of tsunami disaster prevention that has the best technologies and the number of specialists in the calculation of earthquake motions and tsunami heights in Japan as a private company. Using extremely sophisticated calculations and simulations, we have piled up many track records, from the wide-area tsunami forecast of the national earthquake disaster preventions strategy to the estimation of damages in domestic/overseas local governments.

One of our major strengths in tsunami-related services is the ability to comprehensively analyze both earthquake motions and tsunami. By predicting long-period seismic motions caused by large earthquakes and seismic motions using high-precision ground models, as well as tsunami heights and inundation area, it is possible for us to comprehensively evaluate both earthquake and tsunami risks and to lead to more effective disaster prevention measures.

Example of Simultaneous Calculation of Long-period seismic motion and tsunami
Seismic motion spreads first, followed by tsunami

Latest probabilistic predictions of tsunami

Previous scenario-based predictions could cause unexpected results. On the other hand, in the probabilistic assessment of tsunami hazards conducted overseas, it is possible to eliminate unexpected situations and to perform a more quantitative risk assessment. We are also conducting probabilistic assessments of tsunami hazard on the Japanese coasts together with the National Research Institute for Earth Science and Disaster Resilience.

Our track records for tsunami-related services

Simulation, disaster scenario creation, etc.

Regional disaster prevention plan, Earthquake disaster prevention strategy, Development plan for city resilient to disasters, Earthquake resistance reform promotion plan, Tsunami evacuation plan, etc.

If there is anything we can help you with, please do not hesitate to contact our Regional and Global Aqua Engineering Business Division.