Evaluation of anchored ship motion under tsunami attack

Huge earthquakes on the Nankai Trough which is located in the offshore of Shikoku island and Ki-i peninsula, Japan may occur in the coming years. Ships under tsunami attack in that bay may be uncontrollable, collision, drifting, grounding, etc. It is decided, to avoid such a dangerous situation, that mooring, arriving or leaving ships should evacuate to a safety area as soon as possible and be anchored there, (and let tsunami go away). The purpose of this paper is calculation of anchoring ships' motions under tsunami attack using mathematical models, and therefore, discussed and evaluated for the safety guidelines.