**4. Conclusion**

Zonation of the subregions of various geodynamic conditions of the latest faults formation has been originally carried out on the Sakhalin on the base of

## *Neotectonics and Stressed State Patterns of the Sakhalin Island DOI: http://dx.doi.org/10.5772/intechopen.93522*

tectonophysical and structural-geomorphological (SG) methods. The boundaries of the mapped zones have evinced a variability of the modern stress field parameters. Reconstruction of the recent tectonic stresses of the Sakhalin has revealed a dominance of strike-slip type of stress state with subhorizontal compression and extension axes. The compression axis is sublatitudinally oriented, and the extension is submeridional. Sublatitudinal compression axes, reconstructed for the Central and Northern Sakhalin by the two-dimensional SG method, are turning to the northeast. The computed parameters of tectonic stresses as a whole are consistent with the results obtained from the earthquake focal mechanisms and GPS/GLONASS movements of earth's surface. The results of this work have demonstrated that the border between the Amur and Okhotsk microplates along the Central Sakhalin Fault on the Southern Sakhalin and change of strike-slip stress field during the folding stage to the reverse fault one to be inappropriate. The further research by SG and other tectonophysical methods of stress field reconstruction may result in the specified map of geodynamical regimes and geohazards in the Sakhalin. Such updated map will not be so complicated as structural geological one in **Figure 2A**. However, the visible indicators of local stress state are rare on the studied territory due to the forest cover. Therefore, the next research stage is expected to involve wider processing of satellite images to get raw data on faulting for the neotectonic and modern stress field reconstruction.
