RESUMO
A sequence of computer experiments is used to study questions concerning the tsunami problem as a quantitative estimate of tsunami danger, detailed geographical tsunami classificaion, determination of the parameters of critical tsunami waves, and the conditions of their development.We call a wave critical' if its impact on the coast is most hazardous. The major singularities of the wavefiel arise in the zones of the deep-water straits. The distribution of the amplification factors is determined by both the global parameters of the wavefields and the local properties of individual harbours. The results obtained for a particular harbour in the northern part of Simushir Island, formed the basis for the quantitative estimate of tsunami danger for this area (AU)
