At least 31 tsunamis have been recorded on the coast of Sakhalin Island, of which 30 have been recorded only in the last 100 years. Their modeling is of obvious interest both for understanding the mechanisms of the origin of the tsunami, and for investigating the possible consequences of tsunamis at points poorly provided with observations. With the help of the NAMI-DANCE software complex, the SDB MRAT FEB RAS staff conducts computational experiments of remote and nearby historical tsunamis and their manifestation in the water area of the Sea of Okhotsk and in the coastal water area of Sakhalin Island. Calculations of the historical tsunami known for its destruction have been carried out: Indonesian of 2004, Chilean tsunami of 1960 and 2010, Moneron of 1971, Urup of 1963, Nevelsk of 2007, Japan of 2011 and others. The results of the calculations were compared with the observations.
Computational experiments are also conducted using hypothetical tsunamis, whose sources are located in the water of the Okhotsk Sea (deep-focus earthquake in 2013) and in the Pacific Ocean. The potential danger of such earthquakes is obvious. Based on the results of numerical calculations of the tsunami on October 13, 1963, the distribution of the maximum wave heights of this tsunami along the coast of Sakhalin island was constructed. For the transoceanic tsunami (the Japanese tsunami on March 11, 2011 and the Chilean tsunami on February 27, 2010), distributions of the maximum values of the positive wave amplitudes of these tsunamis in the water area of the Pacific Ocean and in the Sea of Okhotsk were constructed.
This made it possible to identify areas of the Sea of Okhotsk and the Sea of Japan, as well as the coastal water area of the island, where the largest tsunami amplitudes were manifested.