The distribution and orientation of regional seismogenic faults of Kamchatka are calculated by Frac-Digger method based on seismic data catalogs of the Kamchatka Branch of the Federal Research Center United Geophysical Survey, Russian Academy of Sciences. The analysis of Mohr–Coulomb diagrams shows three main geomechanical states, when the regional seismogenic faults can be active: NWW horizontal extention at an azimuth of 300°, horizontal radial extention, and horizontal radial compression. Hydrothermal explosions occur, when the pore pressure exceeds the stress values in the rock mass.
Kiryukhin et al. (Wed,) studied this question.